251255334271 has 2 divisors, whose sum is σ = 251255334272. Its totient is φ = 251255334270.

The previous prime is 251255334263. The next prime is 251255334353. The reversal of 251255334271 is 172433552152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 251255334271 - 2³ = 251255334263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251255334871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125627667135 + 125627667136.

It is an arithmetic number, because the mean of its divisors is an integer number (125627667136).

Almost surely, 2^251255334271 is an apocalyptic number.

251255334271 is a deficient number, since it is larger than the sum of its proper divisors (1).

251255334271 is an equidigital number, since it uses as much as digits as its factorization.

251255334271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 40.

The spelling of 251255334271 in words is "two hundred fifty-one billion, two hundred fifty-five million, three hundred thirty-four thousand, two hundred seventy-one".