56805399949 has 8 divisors (see below), whose sum is σ = 57145595040. Its totient is φ = 56465341296.

The previous prime is 56805399941. The next prime is 56805399953. The reversal of 56805399949 is 94999350865.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56805399949 - 2³ = 56805399941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56805399941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872862 + ... + 935680.

It is an arithmetic number, because the mean of its divisors is an integer number (7143199380).

Almost surely, 2^56805399949 is an apocalyptic number.

It is an amenable number.

56805399949 is a deficient number, since it is larger than the sum of its proper divisors (340195091).

56805399949 is a wasteful number, since it uses less digits than its factorization.

56805399949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68219.

The product of its (nonzero) digits is 94478400, while the sum is 67.

The spelling of 56805399949 in words is "fifty-six billion, eight hundred five million, three hundred ninety-nine thousand, nine hundred forty-nine".