255245313251 has 4 divisors (see below), whose sum is σ = 255250750872. Its totient is φ = 255239875632.

The previous prime is 255245313241. The next prime is 255245313259. The reversal of 255245313251 is 152313542552.

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

It is a cyclic number.

It is not a de Polignac number, because 255245313251 - 2²² = 255241118947 is a prime.

It is a super-2 number, since 2×255245313251² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255245313259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2647781 + ... + 2742486.

It is an arithmetic number, because the mean of its divisors is an integer number (63812687718).

Almost surely, 2^255245313251 is an apocalyptic number.

255245313251 is a deficient number, since it is larger than the sum of its proper divisors (5437621).

255245313251 is an equidigital number, since it uses as much as digits as its factorization.

255245313251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437620.

The product of its digits is 180000, while the sum is 38.

The spelling of 255245313251 in words is "two hundred fifty-five billion, two hundred forty-five million, three hundred thirteen thousand, two hundred fifty-one".