55656659 has 4 divisors (see below), whose sum is σ = 55778904. Its totient is φ = 55534416.

The previous prime is 55656631. The next prime is 55656673. The reversal of 55656659 is 95665655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55656659 - 2¹² = 55652563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55656059) 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 3 ways as a sum of consecutive naturals, for example, 60437 + ... + 61350.

It is an arithmetic number, because the mean of its divisors is an integer number (13944726).

Almost surely, 2^55656659 is an apocalyptic number.

55656659 is a deficient number, since it is larger than the sum of its proper divisors (122245).

55656659 is a wasteful number, since it uses less digits than its factorization.

55656659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122244.

The product of its digits is 1215000, while the sum is 47.

The square root of 55656659 is about 7460.3390673615. The cubic root of 55656659 is about 381.8027430179.

The spelling of 55656659 in words is "fifty-five million, six hundred fifty-six thousand, six hundred fifty-nine".