255532215 has 32 divisors (see below), whose sum is σ = 416563200. Its totient is φ = 133735680.

The previous prime is 255532181. The next prime is 255532237. The reversal of 255532215 is 512235552.

It is not a de Polignac number, because 255532215 - 2⁸ = 255531959 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, 225771 + ... + 226899.

It is an arithmetic number, because the mean of its divisors is an integer number (13017600).

Almost surely, 2^255532215 is an apocalyptic number.

255532215 is a deficient number, since it is larger than the sum of its proper divisors (161030985).

255532215 is a wasteful number, since it uses less digits than its factorization.

255532215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407.

The product of its digits is 15000, while the sum is 30.

The square root of 255532215 is about 15985.3750346997. The cubic root of 255532215 is about 634.5734337290.

Adding to 255532215 its reverse (512235552), we get a palindrome (767767767).

The spelling of 255532215 in words is "two hundred fifty-five million, five hundred thirty-two thousand, two hundred fifteen".