56526409937 has 4 divisors (see below), whose sum is σ = 56548746096. Its totient is φ = 56504073780.

The previous prime is 56526409913. The next prime is 56526409943. The reversal of 56526409937 is 73990462565.

It is a happy number.

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 56526409937 - 2⁶ = 56526409873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56526400937) 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, 11164283 + ... + 11169344.

It is an arithmetic number, because the mean of its divisors is an integer number (14137186524).

Almost surely, 2^56526409937 is an apocalyptic number.

It is an amenable number.

56526409937 is a deficient number, since it is larger than the sum of its proper divisors (22336159).

56526409937 is a wasteful number, since it uses less digits than its factorization.

56526409937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22336158.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 56526409937 in words is "fifty-six billion, five hundred twenty-six million, four hundred nine thousand, nine hundred thirty-seven".