Search a number
-
+
2552725 = 52729503
BaseRepresentation
bin1001101111001110010101
311210200200101
421233032111
51123141400
6130414101
730461230
oct11571625
94720611
102552725
11149399a
12a31331
136b4bb6
144a6417
1535656a
hex26f395

2552725 has 24 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 1686720.

The previous prime is 2552717. The next prime is 2552729. The reversal of 2552725 is 5272552.

2552725 = T405 + T406 + ... + T433.

It is not a de Polignac number, because 2552725 - 23 = 2552717 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2552693 and 2552702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2552729) 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 23 ways as a sum of consecutive naturals, for example, 4824 + ... + 5326.

It is an arithmetic number, because the mean of its divisors is an integer number (156240).

22552725 is an apocalyptic number.

2552725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2552725 is a deficient number, since it is larger than the sum of its proper divisors (1197035).

2552725 is a wasteful number, since it uses less digits than its factorization.

2552725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 544 counting only the distinct ones).

The product of its digits is 7000, while the sum is 28.

The square root of 2552725 is about 1597.7249450390. The cubic root of 2552725 is about 136.6683686747.

It can be divided in two parts, 25527 and 25, that added together give a palindrome (25552).

The spelling of 2552725 in words is "two million, five hundred fifty-two thousand, seven hundred twenty-five".

Divisors: 1 5 7 25 29 35 145 175 203 503 725 1015 2515 3521 5075 12575 14587 17605 72935 88025 102109 364675 510545 2552725