251425522552 has 24 divisors (see below), whose sum is σ = 480485494440. Its totient is φ = 123340811360.

The previous prime is 251425522549. The next prime is 251425522577. The reversal of 251425522552 is 255225524152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5571724 + ... + 5616667.

It is an arithmetic number, because the mean of its divisors is an integer number (20020228935).

Almost surely, 2^251425522552 is an apocalyptic number.

It is an amenable number.

251425522552 is a deficient number, since it is larger than the sum of its proper divisors (229059971888).

251425522552 is a wasteful number, since it uses less digits than its factorization.

251425522552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11188503 (or 11188446 counting only the distinct ones).

The product of its digits is 400000, while the sum is 40.

The spelling of 251425522552 in words is "two hundred fifty-one billion, four hundred twenty-five million, five hundred twenty-two thousand, five hundred fifty-two".