56636985 has 8 divisors (see below), whose sum is σ = 90619200. Its totient is φ = 30206384.

The previous prime is 56636981. The next prime is 56637011. The reversal of 56636985 is 58963665.

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 56636985 - 2² = 56636981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56636981) 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, 1887885 + ... + 1887914.

It is an arithmetic number, because the mean of its divisors is an integer number (11327400).

Almost surely, 2^56636985 is an apocalyptic number.

It is an amenable number.

56636985 is a deficient number, since it is larger than the sum of its proper divisors (33982215).

56636985 is a wasteful number, since it uses less digits than its factorization.

56636985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3775807.

The product of its digits is 1166400, while the sum is 48.

The square root of 56636985 is about 7525.7547794225. The cubic root of 56636985 is about 384.0313762882.

The spelling of 56636985 in words is "fifty-six million, six hundred thirty-six thousand, nine hundred eighty-five".