56105500998 has 8 divisors (see below), whose sum is σ = 112211002008. Its totient is φ = 18701833664.

The previous prime is 56105500981. The next prime is 56105501029. The reversal of 56105500998 is 89900550165.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

56105500998 is an admirable number.

It is a Curzon number.

It is a congruent number.

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, 4675458411 + ... + 4675458422.

It is an arithmetic number, because the mean of its divisors is an integer number (14026375251).

Almost surely, 2^56105500998 is an apocalyptic number.

56105500998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56105500998 is a wasteful number, since it uses less digits than its factorization.

56105500998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9350916838.

The product of its (nonzero) digits is 486000, while the sum is 48.

The spelling of 56105500998 in words is "fifty-six billion, one hundred five million, five hundred thousand, nine hundred ninety-eight".