55836661 has 8 divisors (see below), whose sum is σ = 57990944. Its totient is φ = 53721360.

The previous prime is 55836659. The next prime is 55836689. The reversal of 55836661 is 16663855.

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 55836661 - 2¹ = 55836659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55836631) 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, 6810 + ... + 12571.

It is an arithmetic number, because the mean of its divisors is an integer number (7248868).

Almost surely, 2^55836661 is an apocalyptic number.

It is an amenable number.

55836661 is a deficient number, since it is larger than the sum of its proper divisors (2154283).

55836661 is a wasteful number, since it uses less digits than its factorization.

55836661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19491.

The product of its digits is 129600, while the sum is 40.

The square root of 55836661 is about 7472.3932578525. The cubic root of 55836661 is about 382.2139025698.

The spelling of 55836661 in words is "fifty-five million, eight hundred thirty-six thousand, six hundred sixty-one".