Search a number
-
+
25025972 = 2217368029
BaseRepresentation
bin101111101110…
…1110110110100
31202002110011212
41133131312310
522401312342
62252220552
7422501006
oct137356664
952073155
1025025972
1113143424
12846a758
135252c8a
143476376
1522e5182
hex17dddb4

25025972 has 12 divisors (see below), whose sum is σ = 46371780. Its totient is φ = 11776896.

The previous prime is 25025969. The next prime is 25025981. The reversal of 25025972 is 27952052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21771556 + 3254416 = 4666^2 + 1804^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183947 + ... + 184082.

It is an arithmetic number, because the mean of its divisors is an integer number (3864315).

Almost surely, 225025972 is an apocalyptic number.

It is an amenable number.

25025972 is a deficient number, since it is larger than the sum of its proper divisors (21345808).

25025972 is a wasteful number, since it uses less digits than its factorization.

25025972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368050 (or 368048 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 25025972 is about 5002.5965258054. The cubic root of 25025972 is about 292.5029955619.

The spelling of 25025972 in words is "twenty-five million, twenty-five thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 368029 736058 1472116 6256493 12512986 25025972