255164904 has 80 divisors (see below), whose sum is σ = 717106500. Its totient is φ = 84768768.

The previous prime is 255164873. The next prime is 255164909. The reversal of 255164904 is 409461552.

255164904 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 649 + 0 + 4 = 666.

255164904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 240188004 + 14976900 = 15498^2 + 3870^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (255164909) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 290514 + ... + 291390.

Almost surely, 2^255164904 is an apocalyptic number.

255164904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255164904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358553250).

255164904 is an abundant number, since it is smaller than the sum of its proper divisors (461941596).

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

255164904 is a wasteful number, since it uses less digits than its factorization.

255164904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 255164904 is about 15973.8819327050. The cubic root of 255164904 is about 634.2692351975.

The spelling of 255164904 in words is "two hundred fifty-five million, one hundred sixty-four thousand, nine hundred four".