255389492131 has 2 divisors, whose sum is σ = 255389492132. Its totient is φ = 255389492130.

The previous prime is 255389492129. The next prime is 255389492191. The reversal of 255389492131 is 131294983552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255389492131 - 2¹ = 255389492129 is a prime.

It is a super-2 number, since 2×255389492131² (a number of 24 digits) contains 22 as substring.

Together with 255389492129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (255389492191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127694746065 + 127694746066.

It is an arithmetic number, because the mean of its divisors is an integer number (127694746066).

Almost surely, 2^255389492131 is an apocalyptic number.

255389492131 is a deficient number, since it is larger than the sum of its proper divisors (1).

255389492131 is an equidigital number, since it uses as much as digits as its factorization.

255389492131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 52.

The spelling of 255389492131 in words is "two hundred fifty-five billion, three hundred eighty-nine million, four hundred ninety-two thousand, one hundred thirty-one".