55563804 has 36 divisors (see below), whose sum is σ = 142383696. Its totient is φ = 18266688.

The previous prime is 55563793. The next prime is 55563817. The reversal of 55563804 is 40836555.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7944 + ... + 13199.

Almost surely, 2^55563804 is an apocalyptic number.

It is an amenable number.

55563804 is an abundant number, since it is smaller than the sum of its proper divisors (86819892).

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

55563804 is a wasteful number, since it uses less digits than its factorization.

55563804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21226 (or 21221 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 55563804 is about 7454.1132269372. The cubic root of 55563804 is about 381.5902974736.

The spelling of 55563804 in words is "fifty-five million, five hundred sixty-three thousand, eight hundred four".