Search a number
-
+
24950025 = 3652372
BaseRepresentation
bin101111100101…
…1010100001001
31201221121000000
41133023110021
522341400100
62250433213
7422033412
oct137132411
951847000
1024950025
11130a1361
128432809
135227539
143456809
1522cc900
hex17cb509

24950025 has 63 divisors (see below), whose sum is σ = 47673381. Its totient is φ = 12947040.

The previous prime is 24950011. The next prime is 24950027. The reversal of 24950025 is 52005942.

The square root of 24950025 is 4995.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2368521 + 22581504 = 1539^2 + 4752^2 .

It is not a de Polignac number, because 24950025 - 217 = 24818953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (24950027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 674307 + ... + 674343.

Almost surely, 224950025 is an apocalyptic number.

24950025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

24950025 is the 4995-th square number.

24950025 is the 2498-th centered octagonal number.

It is an amenable number.

24950025 is a deficient number, since it is larger than the sum of its proper divisors (22723356).

24950025 is an frugal number, since it uses more digits than its factorization.

24950025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The cubic root of 24950025 is about 292.2068068019.

Multiplying 24950025 by its product of nonzero digits (3600), we get a square (89820090000 = 2997002).

Adding to 24950025 its reverse (52005942), we get a palindrome (76955967).

The spelling of 24950025 in words is "twenty-four million, nine hundred fifty thousand, twenty-five".

Divisors: 1 3 5 9 15 25 27 37 45 75 81 111 135 185 225 243 333 405 555 675 729 925 999 1215 1369 1665 2025 2775 2997 3645 4107 4995 6075 6845 8325 8991 12321 14985 18225 20535 24975 26973 34225 36963 44955 61605 74925 102675 110889 134865 184815 224775 308025 332667 554445 674325 924075 998001 1663335 2772225 4990005 8316675 24950025