255605604 has 12 divisors (see below), whose sum is σ = 596413104. Its totient is φ = 85201864.

The previous prime is 255605593. The next prime is 255605617. The reversal of 255605604 is 406506552.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10650222 + ... + 10650245.

It is an arithmetic number, because the mean of its divisors is an integer number (49701092).

Almost surely, 2^255605604 is an apocalyptic number.

It is an amenable number.

255605604 is an abundant number, since it is smaller than the sum of its proper divisors (340807500).

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

255605604 is a wasteful number, since it uses less digits than its factorization.

255605604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21300474 (or 21300472 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 255605604 is about 15987.6703743854. The cubic root of 255605604 is about 634.6341778666.

The spelling of 255605604 in words is "two hundred fifty-five million, six hundred five thousand, six hundred four".