56207921401 has 4 divisors (see below), whose sum is σ = 56502203904. Its totient is φ = 55913638900.

The previous prime is 56207921377. The next prime is 56207921447. The reversal of 56207921401 is 10412970265.

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 a cyclic number.

It is not a de Polignac number, because 56207921401 - 2¹⁷ = 56207790329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56207921461) 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, 147140965 + ... + 147141346.

It is an arithmetic number, because the mean of its divisors is an integer number (14125550976).

Almost surely, 2^56207921401 is an apocalyptic number.

It is an amenable number.

56207921401 is a deficient number, since it is larger than the sum of its proper divisors (294282503).

56207921401 is a wasteful number, since it uses less digits than its factorization.

56207921401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294282502.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 56207921401 in words is "fifty-six billion, two hundred seven million, nine hundred twenty-one thousand, four hundred one".