55667904 has 28 divisors (see below), whose sum is σ = 147288504. Its totient is φ = 18555904.

The previous prime is 55667897. The next prime is 55667917. The reversal of 55667904 is 40976655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144777 + ... + 145160.

Almost surely, 2^55667904 is an apocalyptic number.

It is an amenable number.

55667904 is an abundant number, since it is smaller than the sum of its proper divisors (91620600).

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

55667904 is a wasteful number, since it uses less digits than its factorization.

55667904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289952 (or 289942 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 55667904 is about 7461.0926813705. The cubic root of 55667904 is about 381.8284547226.

The spelling of 55667904 in words is "fifty-five million, six hundred sixty-seven thousand, nine hundred four".