251300155552231 has 4 divisors (see below), whose sum is σ = 251300615542192. Its totient is φ = 251299695562272.

The previous prime is 251300155552183. The next prime is 251300155552273. The reversal of 251300155552231 is 132255551003152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 251300155552231 - 2²¹ = 251300153455079 is a prime.

It is a super-2 number, since 2×251300155552231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251300155592231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229174530 + ... + 230268463.

It is an arithmetic number, because the mean of its divisors is an integer number (62825153885548).

Almost surely, 2^{251300155552231} is an apocalyptic number.

251300155552231 is a deficient number, since it is larger than the sum of its proper divisors (459989961).

251300155552231 is an equidigital number, since it uses as much as digits as its factorization.

251300155552231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459989960.

The product of its (nonzero) digits is 225000, while the sum is 40.

The spelling of 251300155552231 in words is "two hundred fifty-one trillion, three hundred billion, one hundred fifty-five million, five hundred fifty-two thousand, two hundred thirty-one".