56091474971800 has 48 divisors (see below), whose sum is σ = 130414904586000. Its totient is φ = 22436207145600.

The previous prime is 56091474971773. The next prime is 56091474971849. The reversal of 56091474971800 is 817947419065.

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, 9505101 + ... + 14231299.

It is an arithmetic number, because the mean of its divisors is an integer number (2716977178875).

Almost surely, 2^{56091474971800} is an apocalyptic number.

56091474971800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56091474971800 is an abundant number, since it is smaller than the sum of its proper divisors (74323429614200).

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

56091474971800 is a wasteful number, since it uses less digits than its factorization.

56091474971800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785556 (or 4785547 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 56091474971800 in words is "fifty-six trillion, ninety-one billion, four hundred seventy-four million, nine hundred seventy-one thousand, eight hundred".