25715012 has 12 divisors (see below), whose sum is σ = 46958016. Its totient is φ = 12298440.

The previous prime is 25715009. The next prime is 25715021. The reversal of 25715012 is 21051752.

It is a happy number.

It is a super-2 number, since 2×25715012² = 1322523684320288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139664 + ... + 139847.

It is an arithmetic number, because the mean of its divisors is an integer number (3913168).

Almost surely, 2^25715012 is an apocalyptic number.

It is an amenable number.

25715012 is a deficient number, since it is larger than the sum of its proper divisors (21243004).

25715012 is a wasteful number, since it uses less digits than its factorization.

25715012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279538 (or 279536 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 25715012 is about 5070.9971406026. The cubic root of 25715012 is about 295.1632228966.

Adding to 25715012 its reverse (21051752), we get a palindrome (46766764).

The spelling of 25715012 in words is "twenty-five million, seven hundred fifteen thousand, twelve".