55658505204 has 36 divisors (see below), whose sum is σ = 141588476484. Its totient is φ = 18434662272.

The previous prime is 55658505191. The next prime is 55658505241. The reversal of 55658505204 is 40250585655.

55658505204 is a `hidden beast` number, since 5 + 565 + 85 + 0 + 5 + 2 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27856277604 + 27802227600 = 166902^2 + 166740^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 55658505204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4918137 + ... + 4929440.

Almost surely, 2^55658505204 is an apocalyptic number.

It is an amenable number.

55658505204 is an abundant number, since it is smaller than the sum of its proper divisors (85929971280).

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

55658505204 is a wasteful number, since it uses less digits than its factorization.

55658505204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9847744 (or 9847739 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 45.

The spelling of 55658505204 in words is "fifty-five billion, six hundred fifty-eight million, five hundred five thousand, two hundred four".