56362391009 has 4 divisors (see below), whose sum is σ = 56364960816. Its totient is φ = 56359821204.

The previous prime is 56362390993. The next prime is 56362391051. The reversal of 56362391009 is 90019326365.

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 56362391009 - 2⁴ = 56362390993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56362391609) 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, 1251719 + ... + 1295964.

It is an arithmetic number, because the mean of its divisors is an integer number (14091240204).

Almost surely, 2^56362391009 is an apocalyptic number.

It is an amenable number.

56362391009 is a deficient number, since it is larger than the sum of its proper divisors (2569807).

56362391009 is a wasteful number, since it uses less digits than its factorization.

56362391009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569806.

The product of its (nonzero) digits is 262440, while the sum is 44.

The spelling of 56362391009 in words is "fifty-six billion, three hundred sixty-two million, three hundred ninety-one thousand, nine".