255655276157 has 4 divisors (see below), whose sum is σ = 256461759996. Its totient is φ = 254848792320.

The previous prime is 255655276111. The next prime is 255655276171. The reversal of 255655276157 is 751672556552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107471853241 + 148183422916 = 327829^2 + 384946^2 .

It is a cyclic number.

It is not a de Polignac number, because 255655276157 - 2²⁰ = 255654227581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255655275157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403241444 + ... + 403242077.

It is an arithmetic number, because the mean of its divisors is an integer number (64115439999).

Almost surely, 2^255655276157 is an apocalyptic number.

It is an amenable number.

255655276157 is a deficient number, since it is larger than the sum of its proper divisors (806483839).

255655276157 is an equidigital number, since it uses as much as digits as its factorization.

255655276157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806483838.

The product of its digits is 22050000, while the sum is 56.

The spelling of 255655276157 in words is "two hundred fifty-five billion, six hundred fifty-five million, two hundred seventy-six thousand, one hundred fifty-seven".