255505767 has 48 divisors (see below), whose sum is σ = 401290752. Its totient is φ = 143354880.

The previous prime is 255505717. The next prime is 255505793. The reversal of 255505767 is 767505552.

It is not a de Polignac number, because 255505767 - 2⁸ = 255505511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255505717) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 696018 + ... + 696384.

It is an arithmetic number, because the mean of its divisors is an integer number (8360224).

Almost surely, 2^255505767 is an apocalyptic number.

255505767 is a deficient number, since it is larger than the sum of its proper divisors (145784985).

255505767 is a wasteful number, since it uses less digits than its factorization.

255505767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 367500, while the sum is 42.

The square root of 255505767 is about 15984.5477571309. The cubic root of 255505767 is about 634.5515398460.

The spelling of 255505767 in words is "two hundred fifty-five million, five hundred five thousand, seven hundred sixty-seven".