255503604 has 12 divisors (see below), whose sum is σ = 596175104. Its totient is φ = 85167864.

The previous prime is 255503597. The next prime is 255503623. The reversal of 255503604 is 406305552.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10645972 + ... + 10645995.

Almost surely, 2^255503604 is an apocalyptic number.

It is an amenable number.

255503604 is an abundant number, since it is smaller than the sum of its proper divisors (340671500).

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

255503604 is a wasteful number, since it uses less digits than its factorization.

255503604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21291974 (or 21291972 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 255503604 is about 15984.4800978950. The cubic root of 255503604 is about 634.5497492291.

The spelling of 255503604 in words is "two hundred fifty-five million, five hundred three thousand, six hundred four".