255556904 has 8 divisors (see below), whose sum is σ = 479169210. Its totient is φ = 127778448.

The previous prime is 255556853. The next prime is 255556943. The reversal of 255556904 is 409655552.

It can be written as a sum of positive squares in only one way, i.e., 214622500 + 40934404 = 14650^2 + 6398^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 15972299 + ... + 15972314.

Almost surely, 2^255556904 is an apocalyptic number.

It is an amenable number.

255556904 is a deficient number, since it is larger than the sum of its proper divisors (223612306).

255556904 is a wasteful number, since it uses less digits than its factorization.

255556904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31944619 (or 31944615 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 255556904 is about 15986.1472531689. The cubic root of 255556904 is about 634.5938701333.

The spelling of 255556904 in words is "two hundred fifty-five million, five hundred fifty-six thousand, nine hundred four".