25615325 has 12 divisors (see below), whose sum is σ = 33435360. Its totient is φ = 19413360.

The previous prime is 25615313. The next prime is 25615349. The reversal of 25615325 is 52351652.

It is a happy number.

It is not a de Polignac number, because 25615325 - 2⁸ = 25615069 is a prime.

It is a super-2 number, since 2×25615325² = 1312289749711250, which contains 22 as substring.

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, 26489 + ... + 27438.

It is an arithmetic number, because the mean of its divisors is an integer number (2786280).

Almost surely, 2^25615325 is an apocalyptic number.

25615325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25615325 is a deficient number, since it is larger than the sum of its proper divisors (7820035).

25615325 is a wasteful number, since it uses less digits than its factorization.

25615325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53956 (or 53951 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 25615325 is about 5061.1584642254. The cubic root of 25615325 is about 294.7813183502.

Adding to 25615325 its reverse (52351652), we get a palindrome (77966977).

The spelling of 25615325 in words is "twenty-five million, six hundred fifteen thousand, three hundred twenty-five".