255625775 has 24 divisors (see below), whose sum is σ = 327729024. Its totient is φ = 197657600.

The previous prime is 255625771. The next prime is 255625789. The reversal of 255625775 is 577526552.

It is not a de Polignac number, because 255625775 - 2² = 255625771 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 (255625771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114722 + ... + 116928.

It is an arithmetic number, because the mean of its divisors is an integer number (13655376).

Almost surely, 2^255625775 is an apocalyptic number.

255625775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255625775 is a deficient number, since it is larger than the sum of its proper divisors (72103249).

255625775 is a wasteful number, since it uses less digits than its factorization.

255625775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371 (or 2366 counting only the distinct ones).

The product of its digits is 735000, while the sum is 44.

The square root of 255625775 is about 15988.3011918090. The cubic root of 255625775 is about 634.6508713833.

The spelling of 255625775 in words is "two hundred fifty-five million, six hundred twenty-five thousand, seven hundred seventy-five".