56708819 has 4 divisors (see below), whose sum is σ = 57293544. Its totient is φ = 56124096.

The previous prime is 56708801. The next prime is 56708843. The reversal of 56708819 is 91880765.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56708819 - 2⁸ = 56708563 is a prime.

It is a super-2 number, since 2×56708819² = 6431780304749522, which contains 22 as substring.

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 56708819.

It is not an unprimeable number, because it can be changed into a prime (56708419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292217 + ... + 292410.

It is an arithmetic number, because the mean of its divisors is an integer number (14323386).

Almost surely, 2^56708819 is an apocalyptic number.

56708819 is a deficient number, since it is larger than the sum of its proper divisors (584725).

56708819 is an equidigital number, since it uses as much as digits as its factorization.

56708819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584724.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 56708819 is about 7530.5258116549. The cubic root of 56708819 is about 384.1936663255.

The spelling of 56708819 in words is "fifty-six million, seven hundred eight thousand, eight hundred nineteen".