56868815 has 8 divisors (see below), whose sum is σ = 70087200. Its totient is φ = 44265312.

The previous prime is 56868809. The next prime is 56868817. The reversal of 56868815 is 51886865.

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 56868815 - 2⁶ = 56868751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56868815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56868817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153515 + ... + 153884.

It is an arithmetic number, because the mean of its divisors is an integer number (8760900).

Almost surely, 2^56868815 is an apocalyptic number.

56868815 is a deficient number, since it is larger than the sum of its proper divisors (13218385).

56868815 is a wasteful number, since it uses less digits than its factorization.

56868815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307441.

The product of its digits is 460800, while the sum is 47.

The square root of 56868815 is about 7541.1414918433. The cubic root of 56868815 is about 384.5546432847.

The spelling of 56868815 in words is "fifty-six million, eight hundred sixty-eight thousand, eight hundred fifteen".