255591204 has 72 divisors (see below), whose sum is σ = 662276160. Its totient is φ = 76655040.

The previous prime is 255591199. The next prime is 255591223. The reversal of 255591204 is 402195552.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148702 + ... + 150410.

It is an arithmetic number, because the mean of its divisors is an integer number (9198280).

Almost surely, 2^255591204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255591204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331138080).

255591204 is an abundant number, since it is smaller than the sum of its proper divisors (406684956).

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

255591204 is a wasteful number, since it uses less digits than its factorization.

255591204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1828 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 255591204 is about 15987.2200210043. The cubic root of 255591204 is about 634.6222598913.

The spelling of 255591204 in words is "two hundred fifty-five million, five hundred ninety-one thousand, two hundred four".