56589665 has 8 divisors (see below), whose sum is σ = 74081088. Its totient is φ = 41156080.

The previous prime is 56589661. The next prime is 56589679. The reversal of 56589665 is 56698565.

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

It is not a de Polignac number, because 56589665 - 2² = 56589661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56589661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514397 + ... + 514506.

It is an arithmetic number, because the mean of its divisors is an integer number (9260136).

Almost surely, 2^56589665 is an apocalyptic number.

56589665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56589665 is a deficient number, since it is larger than the sum of its proper divisors (17491423).

56589665 is a wasteful number, since it uses less digits than its factorization.

56589665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028919.

The product of its digits is 1944000, while the sum is 50.

The square root of 56589665 is about 7522.6102517677. The cubic root of 56589665 is about 383.9243942042.

Subtracting 56589665 from its reverse (56698565), we obtain a square (108900 = 330²).

The spelling of 56589665 in words is "fifty-six million, five hundred eighty-nine thousand, six hundred sixty-five".