251354552253 has 64 divisors (see below), whose sum is σ = 397654523904. Its totient is φ = 138197664000.

The previous prime is 251354552219. The next prime is 251354552269. The reversal of 251354552253 is 352255453152.

It is not a de Polignac number, because 251354552253 - 2²⁴ = 251337775037 is a prime.

It is a super-2 number, since 2×251354552253² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251359552253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113170683 + ... + 113172903.

It is an arithmetic number, because the mean of its divisors is an integer number (6213351936).

Almost surely, 2^251354552253 is an apocalyptic number.

It is an amenable number.

251354552253 is a deficient number, since it is larger than the sum of its proper divisors (146299971651).

251354552253 is a wasteful number, since it uses less digits than its factorization.

251354552253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186.

The product of its digits is 900000, while the sum is 42.

The spelling of 251354552253 in words is "two hundred fifty-one billion, three hundred fifty-four million, five hundred fifty-two thousand, two hundred fifty-three".