251255312151 has 16 divisors (see below), whose sum is σ = 341510031360. Its totient is φ = 164255438880.

The previous prime is 251255312117. The next prime is 251255312173. The reversal of 251255312151 is 151213552152.

It is not a de Polignac number, because 251255312151 - 2¹⁹ = 251254787863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251255312051) 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, 121735 + ... + 719256.

It is an arithmetic number, because the mean of its divisors is an integer number (21344376960).

Almost surely, 2^251255312151 is an apocalyptic number.

251255312151 is a deficient number, since it is larger than the sum of its proper divisors (90254719209).

251255312151 is a wasteful number, since it uses less digits than its factorization.

251255312151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842926.

The product of its digits is 15000, while the sum is 33.

The spelling of 251255312151 in words is "two hundred fifty-one billion, two hundred fifty-five million, three hundred twelve thousand, one hundred fifty-one".