56320865 has 8 divisors (see below), whose sum is σ = 67959528. Its totient is φ = 44807040.

The previous prime is 56320861. The next prime is 56320867. The reversal of 56320865 is 56802365.

It can be written as a sum of positive squares in 4 ways, for example, as 3888784 + 52432081 = 1972^2 + 7241^2 .

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

It is not a de Polignac number, because 56320865 - 2² = 56320861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56320861) 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, 30212 + ... + 32021.

It is an arithmetic number, because the mean of its divisors is an integer number (8494941).

Almost surely, 2^56320865 is an apocalyptic number.

It is an amenable number.

56320865 is a deficient number, since it is larger than the sum of its proper divisors (11638663).

56320865 is a wasteful number, since it uses less digits than its factorization.

56320865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62419.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 56320865 is about 7504.7228463148. The cubic root of 56320865 is about 383.3155509499.

The spelling of 56320865 in words is "fifty-six million, three hundred twenty thousand, eight hundred sixty-five".