251083899332 has 24 divisors (see below), whose sum is σ = 505780524480. Its totient is φ = 106833229920.

The previous prime is 251083899331. The next prime is 251083899337. The reversal of 251083899332 is 233998380152.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (251083899331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32252519 + ... + 32260302.

It is an arithmetic number, because the mean of its divisors is an integer number (21074188520).

Almost surely, 2^251083899332 is an apocalyptic number.

It is an amenable number.

251083899332 is an abundant number, since it is smaller than the sum of its proper divisors (254696625148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251083899332 is a wasteful number, since it uses less digits than its factorization.

251083899332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64512971 (or 64512969 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 251083899332 in words is "two hundred fifty-one billion, eighty-three million, eight hundred ninety-nine thousand, three hundred thirty-two".