255607775 has 12 divisors (see below), whose sum is σ = 318977352. Its totient is φ = 203180640.

The previous prime is 255607753. The next prime is 255607777. The reversal of 255607775 is 577706552.

It is a happy number.

It is not a de Polignac number, because 255607775 - 2⁸ = 255607519 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 (255607777) 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, 28637 + ... + 36486.

It is an arithmetic number, because the mean of its divisors is an integer number (26581446).

Almost surely, 2^255607775 is an apocalyptic number.

255607775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255607775 is a deficient number, since it is larger than the sum of its proper divisors (63369577).

255607775 is a wasteful number, since it uses less digits than its factorization.

255607775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65290 (or 65285 counting only the distinct ones).

The product of its (nonzero) digits is 514500, while the sum is 44.

The square root of 255607775 is about 15987.7382703120. The cubic root of 255607775 is about 634.6359746280.

The spelling of 255607775 in words is "two hundred fifty-five million, six hundred seven thousand, seven hundred seventy-five".