56444050391 has 2 divisors, whose sum is σ = 56444050392. Its totient is φ = 56444050390.

The previous prime is 56444050379. The next prime is 56444050409. The reversal of 56444050391 is 19305044465.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56444050391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56444055391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28222025195 + 28222025196.

It is an arithmetic number, because the mean of its divisors is an integer number (28222025196).

Almost surely, 2^56444050391 is an apocalyptic number.

56444050391 is a deficient number, since it is larger than the sum of its proper divisors (1).

56444050391 is an equidigital number, since it uses as much as digits as its factorization.

56444050391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 56444050391 in words is "fifty-six billion, four hundred forty-four million, fifty thousand, three hundred ninety-one".