25013512 has 32 divisors (see below), whose sum is σ = 49694400. Its totient is φ = 11778624.

The previous prime is 25013449. The next prime is 25013543. The reversal of 25013512 is 21531052.

It is a self number, because there is not a number n which added to its sum of digits gives 25013512.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11314 + ... + 13342.

It is an arithmetic number, because the mean of its divisors is an integer number (1552950).

Almost surely, 2^25013512 is an apocalyptic number.

It is an amenable number.

25013512 is a deficient number, since it is larger than the sum of its proper divisors (24680888).

25013512 is a wasteful number, since it uses less digits than its factorization.

25013512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125 (or 2121 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25013512 is about 5001.3510174752. The cubic root of 25013512 is about 292.4544434370.

Adding to 25013512 its reverse (21531052), we get a palindrome (46544564).

The spelling of 25013512 in words is "twenty-five million, thirteen thousand, five hundred twelve".