56039862621 has 4 divisors (see below), whose sum is σ = 74719816832. Its totient is φ = 37359908412.

The previous prime is 56039862601. The next prime is 56039862643. The reversal of 56039862621 is 12626893065.

56039862621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56039862621 - 2¹⁴ = 56039846237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56039862601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9339977101 + ... + 9339977106.

It is an arithmetic number, because the mean of its divisors is an integer number (18679954208).

Almost surely, 2^56039862621 is an apocalyptic number.

It is an amenable number.

56039862621 is a deficient number, since it is larger than the sum of its proper divisors (18679954211).

56039862621 is a wasteful number, since it uses less digits than its factorization.

56039862621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18679954210.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 56039862621 in words is "fifty-six billion, thirty-nine million, eight hundred sixty-two thousand, six hundred twenty-one".