255311020 has 24 divisors (see below), whose sum is σ = 537335568. Its totient is φ = 101899200.

The previous prime is 255310987. The next prime is 255311051. The reversal of 255311020 is 20113552.

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, 4626 + ... + 23065.

It is an arithmetic number, because the mean of its divisors is an integer number (22388982).

Almost surely, 2^255311020 is an apocalyptic number.

255311020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255311020 is an abundant number, since it is smaller than the sum of its proper divisors (282024548).

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

255311020 is a wasteful number, since it uses less digits than its factorization.

255311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28161 (or 28159 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 255311020 is about 15978.4548689790. The cubic root of 255311020 is about 634.3902800561.

Adding to 255311020 its reverse (20113552), we get a palindrome (275424572).

The spelling of 255311020 in words is "two hundred fifty-five million, three hundred eleven thousand, twenty".