255386507751 has 12 divisors (see below), whose sum is σ = 368943243760. Its totient is φ = 170233846560.

The previous prime is 255386507711. The next prime is 255386507771. The reversal of 255386507751 is 157705683552.

255386507751 is a `hidden beast` number, since 2 + 5 + 5 + 3 + 86 + 507 + 7 + 51 = 666.

It is not a de Polignac number, because 255386507751 - 2⁹ = 255386507239 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 (255386507711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1917430 + ... + 2046291.

Almost surely, 2^255386507751 is an apocalyptic number.

255386507751 is a deficient number, since it is larger than the sum of its proper divisors (113556736009).

255386507751 is a wasteful number, since it uses less digits than its factorization.

255386507751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970886 (or 3970883 counting only the distinct ones).

The product of its (nonzero) digits is 8820000, while the sum is 54.

The spelling of 255386507751 in words is "two hundred fifty-five billion, three hundred eighty-six million, five hundred seven thousand, seven hundred fifty-one".