255633015 has 32 divisors (see below), whose sum is σ = 452500992. Its totient is φ = 122192000.

The previous prime is 255632989. The next prime is 255633023. The reversal of 255633015 is 510336552.

255633015 = 286² + 287² + ... + 924².

It is not a de Polignac number, because 255633015 - 2⁵ = 255632983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805 + ... + 22625.

It is an arithmetic number, because the mean of its divisors is an integer number (14140656).

Almost surely, 2^255633015 is an apocalyptic number.

255633015 is a deficient number, since it is larger than the sum of its proper divisors (196867977).

255633015 is a wasteful number, since it uses less digits than its factorization.

255633015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21911.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 255633015 is about 15988.5276057553. The cubic root of 255633015 is about 634.6568629921.

Adding to 255633015 its reverse (510336552), we get a palindrome (765969567).

The spelling of 255633015 in words is "two hundred fifty-five million, six hundred thirty-three thousand, fifteen".