56865945 has 8 divisors (see below), whose sum is σ = 90985536. Its totient is φ = 30328496.

The previous prime is 56865943. The next prime is 56865961. The reversal of 56865945 is 54956865.

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 56865945 - 2¹ = 56865943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56865894 and 56865903.

It is not an unprimeable number, because it can be changed into a prime (56865943) 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, 1895517 + ... + 1895546.

It is an arithmetic number, because the mean of its divisors is an integer number (11373192).

Almost surely, 2^56865945 is an apocalyptic number.

It is an amenable number.

56865945 is a deficient number, since it is larger than the sum of its proper divisors (34119591).

56865945 is a wasteful number, since it uses less digits than its factorization.

56865945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791071.

The product of its digits is 1296000, while the sum is 48.

The square root of 56865945 is about 7540.9511999482. The cubic root of 56865945 is about 384.5481740661.

The spelling of 56865945 in words is "fifty-six million, eight hundred sixty-five thousand, nine hundred forty-five".