251437537055 has 16 divisors (see below), whose sum is σ = 311919854400. Its totient is φ = 194443511040.

The previous prime is 251437537027. The next prime is 251437537061. The reversal of 251437537055 is 550735734152.

It is not a de Polignac number, because 251437537055 - 2²⁴ = 251420759839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5603915 + ... + 5648604.

It is an arithmetic number, because the mean of its divisors is an integer number (19494990900).

Almost surely, 2^251437537055 is an apocalyptic number.

251437537055 is a deficient number, since it is larger than the sum of its proper divisors (60482317345).

251437537055 is a wasteful number, since it uses less digits than its factorization.

251437537055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11252674.

The product of its (nonzero) digits is 2205000, while the sum is 47.

The spelling of 251437537055 in words is "two hundred fifty-one billion, four hundred thirty-seven million, five hundred thirty-seven thousand, fifty-five".