56785412021 has 8 divisors (see below), whose sum is σ = 62066260704. Its totient is φ = 51634954800.

The previous prime is 56785411997. The next prime is 56785412039. The reversal of 56785412021 is 12021458765.

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

It is not a de Polignac number, because 56785412021 - 2¹⁸ = 56785149877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56785412021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56785412041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32596955 + ... + 32598696.

It is an arithmetic number, because the mean of its divisors is an integer number (7758282588).

Almost surely, 2^56785412021 is an apocalyptic number.

It is an amenable number.

56785412021 is a deficient number, since it is larger than the sum of its proper divisors (5280848683).

56785412021 is a wasteful number, since it uses less digits than its factorization.

56785412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65195731.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 56785412021 in words is "fifty-six billion, seven hundred eighty-five million, four hundred twelve thousand, twenty-one".