25715625 has 48 divisors (see below), whose sum is σ = 46372032. Its totient is φ = 12600000.

The previous prime is 25715603. The next prime is 25715639. The reversal of 25715625 is 52651752.

It is not a de Polignac number, because 25715625 - 2¹¹ = 25713577 is a prime.

It is a super-2 number, since 2×25715625² = 1322586738281250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121770 + ... + 121980.

It is an arithmetic number, because the mean of its divisors is an integer number (966084).

Almost surely, 2^25715625 is an apocalyptic number.

25715625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25715625 is a deficient number, since it is larger than the sum of its proper divisors (20656407).

25715625 is an equidigital number, since it uses as much as digits as its factorization.

25715625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 232 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 25715625 is about 5071.0575820040. The cubic root of 25715625 is about 295.1655682662.

The spelling of 25715625 in words is "twenty-five million, seven hundred fifteen thousand, six hundred twenty-five".