255110520 has 64 divisors (see below), whose sum is σ = 874667520. Its totient is φ = 58310784.

The previous prime is 255110507. The next prime is 255110521. The reversal of 255110520 is 25011552.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255110521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151012 + ... + 152691.

It is an arithmetic number, because the mean of its divisors is an integer number (13666680).

Almost surely, 2^255110520 is an apocalyptic number.

255110520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255110520 is an abundant number, since it is smaller than the sum of its proper divisors (619557000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255110520 is a wasteful number, since it uses less digits than its factorization.

255110520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303724 (or 303720 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 255110520 is about 15972.1795632281. The cubic root of 255110520 is about 634.2241708117.

The spelling of 255110520 in words is "two hundred fifty-five million, one hundred ten thousand, five hundred twenty".