255271864 has 16 divisors (see below), whose sum is σ = 506790000. Its totient is φ = 120127872.

The previous prime is 255271853. The next prime is 255271867. The reversal of 255271864 is 468172552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255271867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938364 + ... + 938635.

It is an arithmetic number, because the mean of its divisors is an integer number (31674375).

Almost surely, 2^255271864 is an apocalyptic number.

It is an amenable number.

255271864 is a deficient number, since it is larger than the sum of its proper divisors (251518136).

255271864 is a wasteful number, since it uses less digits than its factorization.

255271864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877022 (or 1877018 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 255271864 is about 15977.2295470773. The cubic root of 255271864 is about 634.3578471229.

The spelling of 255271864 in words is "two hundred fifty-five million, two hundred seventy-one thousand, eight hundred sixty-four".