56799809 has 8 divisors (see below), whose sum is σ = 62101728. Its totient is φ = 51520960.

The previous prime is 56799793. The next prime is 56799817. The reversal of 56799809 is 90899765.

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 56799809 - 2⁴ = 56799793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56799859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392 + ... + 10665.

It is an arithmetic number, because the mean of its divisors is an integer number (7762716).

Almost surely, 2^56799809 is an apocalyptic number.

It is an amenable number.

56799809 is a deficient number, since it is larger than the sum of its proper divisors (5301919).

56799809 is a wasteful number, since it uses less digits than its factorization.

56799809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11535.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 56799809 is about 7536.5648010217. The cubic root of 56799809 is about 384.3990376842.

The spelling of 56799809 in words is "fifty-six million, seven hundred ninety-nine thousand, eight hundred nine".