255239377715 has 64 divisors (see below), whose sum is σ = 358145639424. Its totient is φ = 171029741568.

The previous prime is 255239377699. The next prime is 255239377751. The reversal of 255239377715 is 517773932552.

It is not a de Polignac number, because 255239377715 - 2⁴ = 255239377699 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96061667 + ... + 96064323.

It is an arithmetic number, because the mean of its divisors is an integer number (5596025616).

Almost surely, 2^255239377715 is an apocalyptic number.

255239377715 is a deficient number, since it is larger than the sum of its proper divisors (102906261709).

255239377715 is a wasteful number, since it uses less digits than its factorization.

255239377715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116.

The product of its digits is 13891500, while the sum is 56.

The spelling of 255239377715 in words is "two hundred fifty-five billion, two hundred thirty-nine million, three hundred seventy-seven thousand, seven hundred fifteen".