255531459765 has 16 divisors (see below), whose sum is σ = 422039056896. Its totient is φ = 131887204800.

The previous prime is 255531459749. The next prime is 255531459779. The reversal of 255531459765 is 567954135552.

It is not a de Polignac number, because 255531459765 - 2⁴ = 255531459749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274764546 + ... + 274765475.

It is an arithmetic number, because the mean of its divisors is an integer number (26377441056).

Almost surely, 2^255531459765 is an apocalyptic number.

It is an amenable number.

255531459765 is a deficient number, since it is larger than the sum of its proper divisors (166507597131).

255531459765 is a wasteful number, since it uses less digits than its factorization.

255531459765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549530060.

The product of its digits is 28350000, while the sum is 57.

The spelling of 255531459765 in words is "two hundred fifty-five billion, five hundred thirty-one million, four hundred fifty-nine thousand, seven hundred sixty-five".