56555233630 has 32 divisors (see below), whose sum is σ = 120353999040. Its totient is φ = 18721731840.

The previous prime is 56555233619. The next prime is 56555233681. The reversal of 56555233630 is 3633255565.

It is a happy number.

It is a super-3 number, since 3×56555233630³ (a number of 33 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 13927831 + ... + 13931890.

It is an arithmetic number, because the mean of its divisors is an integer number (3761062470).

Almost surely, 2^56555233630 is an apocalyptic number.

56555233630 is an abundant number, since it is smaller than the sum of its proper divisors (63798765410).

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

56555233630 is a wasteful number, since it uses less digits than its factorization.

56555233630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27859764.

The product of its (nonzero) digits is 1215000, while the sum is 43.

The spelling of 56555233630 in words is "fifty-six billion, five hundred fifty-five million, two hundred thirty-three thousand, six hundred thirty".