255031855 has 8 divisors (see below), whose sum is σ = 329579712. Its totient is φ = 188331168.

The previous prime is 255031837. The next prime is 255031871. The reversal of 255031855 is 558130552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255031855 - 2⁷ = 255031727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255031855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961719 + ... + 1961848.

It is an arithmetic number, because the mean of its divisors is an integer number (41197464).

Almost surely, 2^255031855 is an apocalyptic number.

255031855 is a deficient number, since it is larger than the sum of its proper divisors (74547857).

255031855 is a wasteful number, since it uses less digits than its factorization.

255031855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923585.

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 255031855 is about 15969.7168102631. The cubic root of 255031855 is about 634.1589750508.

The spelling of 255031855 in words is "two hundred fifty-five million, thirty-one thousand, eight hundred fifty-five".