56739478201 has 4 divisors (see below), whose sum is σ = 64845117952. Its totient is φ = 48633838452.

The previous prime is 56739478127. The next prime is 56739478231. The reversal of 56739478201 is 10287493765.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10287493765 = 5 ⋅2057498753.

It is a cyclic number.

It is not a de Polignac number, because 56739478201 - 2⁷ = 56739478073 is a prime.

It is the 238201-st Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56739478231) by changing a digit.

It is a nontrivial repunit in base 238200.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4052819865 + ... + 4052819878.

It is an arithmetic number, because the mean of its divisors is an integer number (16211279488).

It is a 2-persistent number, because it is pandigital, and so is 2⋅56739478201 = 113478956402, but 3⋅56739478201 = 170218434603 is not.

Almost surely, 2^56739478201 is an apocalyptic number.

It is an amenable number.

56739478201 is a deficient number, since it is larger than the sum of its proper divisors (8105639751).

56739478201 is an equidigital number, since it uses as much as digits as its factorization.

56739478201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8105639750.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 56739478201 in words is "fifty-six billion, seven hundred thirty-nine million, four hundred seventy-eight thousand, two hundred one".