251262776253 has 16 divisors (see below), whose sum is σ = 354734925120. Its totient is φ = 157650183936.

The previous prime is 251262776251. The next prime is 251262776267. The reversal of 251262776253 is 352677262152.

It is not a de Polignac number, because 251262776253 - 2¹ = 251262776251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251262776251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2302203 + ... + 2408871.

It is an arithmetic number, because the mean of its divisors is an integer number (22170932820).

Almost surely, 2^251262776253 is an apocalyptic number.

It is an amenable number.

251262776253 is a deficient number, since it is larger than the sum of its proper divisors (103472148867).

251262776253 is a wasteful number, since it uses less digits than its factorization.

251262776253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152876.

The product of its digits is 2116800, while the sum is 48.

The spelling of 251262776253 in words is "two hundred fifty-one billion, two hundred sixty-two million, seven hundred seventy-six thousand, two hundred fifty-three".