56805999 has 8 divisors (see below), whose sum is σ = 75830832. Its totient is φ = 37825920.

The previous prime is 56805997. The next prime is 56806019. The reversal of 56805999 is 99950865.

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

It is not a de Polignac number, because 56805999 - 2¹ = 56805997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56805997) 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, 8104 + ... + 13389.

It is an arithmetic number, because the mean of its divisors is an integer number (9478854).

Almost surely, 2^56805999 is an apocalyptic number.

56805999 is a deficient number, since it is larger than the sum of its proper divisors (19024833).

56805999 is a wasteful number, since it uses less digits than its factorization.

56805999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22377.

The product of its (nonzero) digits is 874800, while the sum is 51.

The square root of 56805999 is about 7536.9754543849. The cubic root of 56805999 is about 384.4130010152.

The spelling of 56805999 in words is "fifty-six million, eight hundred five thousand, nine hundred ninety-nine".