56857499 has 8 divisors (see below), whose sum is σ = 58102272. Its totient is φ = 55619200.

The previous prime is 56857483. The next prime is 56857501. The reversal of 56857499 is 99475865.

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 56857499 - 2⁴ = 56857483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56857499.

It is not an unprimeable number, because it can be changed into a prime (56817499) 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, 18899 + ... + 21699.

It is an arithmetic number, because the mean of its divisors is an integer number (7262784).

Almost surely, 2^56857499 is an apocalyptic number.

56857499 is a deficient number, since it is larger than the sum of its proper divisors (1244773).

56857499 is a wasteful number, since it uses less digits than its factorization.

56857499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237.

The product of its digits is 2721600, while the sum is 53.

The square root of 56857499 is about 7540.3911702245. The cubic root of 56857499 is about 384.5291348169.

The spelling of 56857499 in words is "fifty-six million, eight hundred fifty-seven thousand, four hundred ninety-nine".