56446770401 has 4 divisors (see below), whose sum is σ = 64510594752. Its totient is φ = 48382946052.

The previous prime is 56446770397. The next prime is 56446770433. The reversal of 56446770401 is 10407764465.

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 56446770401 - 2² = 56446770397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56446770001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4031912165 + ... + 4031912178.

It is an arithmetic number, because the mean of its divisors is an integer number (16127648688).

Almost surely, 2^56446770401 is an apocalyptic number.

It is an amenable number.

56446770401 is a deficient number, since it is larger than the sum of its proper divisors (8063824351).

56446770401 is an equidigital number, since it uses as much as digits as its factorization.

56446770401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8063824350.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 56446770401 in words is "fifty-six billion, four hundred forty-six million, seven hundred seventy thousand, four hundred one".