56649 has 8 divisors (see below), whose sum is σ = 78912. Its totient is φ = 36080.

The previous prime is 56633. The next prime is 56659. The reversal of 56649 is 94665.

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 56649 - 2⁴ = 56633 is a prime.

56649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (56629) 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, 342 + ... + 479.

It is an arithmetic number, because the mean of its divisors is an integer number (9864).

2⁵⁶⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

56649 is a deficient number, since it is larger than the sum of its proper divisors (22263).

56649 is a wasteful number, since it uses less digits than its factorization.

56649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 6480, while the sum is 30.

The square root of 56649 is about 238.0105039699. The cubic root of 56649 is about 38.4058530575.

The spelling of 56649 in words is "fifty-six thousand, six hundred forty-nine".