56627661 has 8 divisors (see below), whose sum is σ = 75604320. Its totient is φ = 37701392.

The previous prime is 56627617. The next prime is 56627687. The reversal of 56627661 is 16672665.

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 56627661 - 2¹⁰ = 56626637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56627611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9891 + ... + 14528.

It is an arithmetic number, because the mean of its divisors is an integer number (9450540).

Almost surely, 2^56627661 is an apocalyptic number.

It is an amenable number.

56627661 is a deficient number, since it is larger than the sum of its proper divisors (18976659).

56627661 is a wasteful number, since it uses less digits than its factorization.

56627661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25195.

The product of its digits is 90720, while the sum is 39.

The square root of 56627661 is about 7525.1352811760. The cubic root of 56627661 is about 384.0103011017.

The spelling of 56627661 in words is "fifty-six million, six hundred twenty-seven thousand, six hundred sixty-one".