255563404 has 12 divisors (see below), whose sum is σ = 454568128. Its totient is φ = 125686800.

The previous prime is 255563387. The next prime is 255563443. The reversal of 255563404 is 404365552.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 255563404.

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, 523452 + ... + 523939.

Almost surely, 2^255563404 is an apocalyptic number.

It is an amenable number.

255563404 is a deficient number, since it is larger than the sum of its proper divisors (199004724).

255563404 is a wasteful number, since it uses less digits than its factorization.

255563404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047456 (or 1047454 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 255563404 is about 15986.3505528936. The cubic root of 255563404 is about 634.5992503117.

The spelling of 255563404 in words is "two hundred fifty-five million, five hundred sixty-three thousand, four hundred four".