255776766 has 24 divisors (see below), whose sum is σ = 595073160. Its totient is φ = 73078992.

The previous prime is 255776761. The next prime is 255776777. The reversal of 255776766 is 667677552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255776761) 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, 434701 + ... + 435288.

It is an arithmetic number, because the mean of its divisors is an integer number (24794715).

Almost surely, 2^255776766 is an apocalyptic number.

255776766 is an abundant number, since it is smaller than the sum of its proper divisors (339296394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255776766 is a wasteful number, since it uses less digits than its factorization.

255776766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870008 (or 870001 counting only the distinct ones).

The product of its digits is 3704400, while the sum is 51.

The square root of 255776766 is about 15993.0224160413. The cubic root of 255776766 is about 634.7758036318.

The spelling of 255776766 in words is "two hundred fifty-five million, seven hundred seventy-six thousand, seven hundred sixty-six".