56965665 has 8 divisors (see below), whose sum is σ = 91145088. Its totient is φ = 30381680.

The previous prime is 56965663. The next prime is 56965703. The reversal of 56965665 is 56656965.

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

It is not a de Polignac number, because 56965665 - 2¹ = 56965663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56965661) 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, 1898841 + ... + 1898870.

It is an arithmetic number, because the mean of its divisors is an integer number (11393136).

Almost surely, 2^56965665 is an apocalyptic number.

It is an amenable number.

56965665 is a deficient number, since it is larger than the sum of its proper divisors (34179423).

56965665 is a wasteful number, since it uses less digits than its factorization.

56965665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797719.

The product of its digits is 1458000, while the sum is 48.

The square root of 56965665 is about 7547.5602018136. The cubic root of 56965665 is about 384.7728237550.

It can be divided in two parts, 56965 and 665, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 56965665 in words is "fifty-six million, nine hundred sixty-five thousand, six hundred sixty-five".