25256044612 has 12 divisors (see below), whose sum is σ = 44210563600. Its totient is φ = 12624455016.

The previous prime is 25256044607. The next prime is 25256044621. The reversal of 25256044612 is 21644065252.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 875862 + ... + 904237.

Almost surely, 2^25256044612 is an apocalyptic number.

It is an amenable number.

25256044612 is a deficient number, since it is larger than the sum of its proper divisors (18954518988).

25256044612 is a wasteful number, since it uses less digits than its factorization.

25256044612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783650 (or 1783648 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 25256044612 in words is "twenty-five billion, two hundred fifty-six million, forty-four thousand, six hundred twelve".