251225522152 has 16 divisors (see below), whose sum is σ = 513870386400. Its totient is φ = 114193419120.

The previous prime is 251225522111. The next prime is 251225522161.

251225522152 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×251225522152² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427417652 + ... + 1427417827.

It is an arithmetic number, because the mean of its divisors is an integer number (32116899150).

Almost surely, 2^251225522152 is an apocalyptic number.

251225522152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

251225522152 is an abundant number, since it is smaller than the sum of its proper divisors (262644864248).

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

251225522152 is a wasteful number, since it uses less digits than its factorization.

251225522152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854835496 (or 2854835492 counting only the distinct ones).

The product of its digits is 40000, while the sum is 34.

It can be divided in two parts, 251225 and 522152, that added together give a palindrome (773377).

The spelling of 251225522152 in words is "two hundred fifty-one billion, two hundred twenty-five million, five hundred twenty-two thousand, one hundred fifty-two".