55618856 has 8 divisors (see below), whose sum is σ = 104285370. Its totient is φ = 27809424.

The previous prime is 55618841. The next prime is 55618861. The reversal of 55618856 is 65881655.

It can be written as a sum of positive squares in only one way, i.e., 42902500 + 12716356 = 6550^2 + 3566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3476171 + ... + 3476186.

Almost surely, 2^55618856 is an apocalyptic number.

It is an amenable number.

55618856 is a deficient number, since it is larger than the sum of its proper divisors (48666514).

55618856 is a wasteful number, since it uses less digits than its factorization.

55618856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952363 (or 6952359 counting only the distinct ones).

The product of its digits is 288000, while the sum is 44.

The square root of 55618856 is about 7457.8050390178. The cubic root of 55618856 is about 381.7162810182.

The spelling of 55618856 in words is "fifty-five million, six hundred eighteen thousand, eight hundred fifty-six".