255750319057 has 4 divisors (see below), whose sum is σ = 256111039540. Its totient is φ = 255389598576.

The previous prime is 255750319043. The next prime is 255750319061. The reversal of 255750319057 is 750913057552.

It is a happy number.

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 84605938641 + 171144380416 = 290871^2 + 413696^2 .

It is a cyclic number.

It is not a de Polignac number, because 255750319057 - 2¹⁵ = 255750286289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255750319057.

It is not an unprimeable number, because it can be changed into a prime (255750319087) 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, 180359178 + ... + 180360595.

It is an arithmetic number, because the mean of its divisors is an integer number (64027759885).

Almost surely, 2^255750319057 is an apocalyptic number.

It is an amenable number.

255750319057 is a deficient number, since it is larger than the sum of its proper divisors (360720483).

255750319057 is an equidigital number, since it uses as much as digits as its factorization.

255750319057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360720482.

The product of its (nonzero) digits is 1653750, while the sum is 49.

The spelling of 255750319057 in words is "two hundred fifty-five billion, seven hundred fifty million, three hundred nineteen thousand, fifty-seven".