25537925 has 12 divisors (see below), whose sum is σ = 36191136. Its totient is φ = 17511600.

The previous prime is 25537913. The next prime is 25537931. The reversal of 25537925 is 52973552.

It is not a de Polignac number, because 25537925 - 2⁶ = 25537861 is a prime.

It is a super-2 number, since 2×25537925² = 1304371226611250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72791 + ... + 73140.

It is an arithmetic number, because the mean of its divisors is an integer number (3015928).

Almost surely, 2^25537925 is an apocalyptic number.

25537925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25537925 is a deficient number, since it is larger than the sum of its proper divisors (10653211).

25537925 is a wasteful number, since it uses less digits than its factorization.

25537925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145948 (or 145943 counting only the distinct ones).

The product of its digits is 94500, while the sum is 38.

The square root of 25537925 is about 5053.5062085645. The cubic root of 25537925 is about 294.4841122407.

It can be divided in two parts, 25537 and 925, that added together give a palindrome (26462).

The spelling of 25537925 in words is "twenty-five million, five hundred thirty-seven thousand, nine hundred twenty-five".