55311636 has 12 divisors (see below), whose sum is σ = 129060512. Its totient is φ = 18437208.

The previous prime is 55311629. The next prime is 55311653. The reversal of 55311636 is 63611355.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304640 + ... + 2304663.

Almost surely, 2^55311636 is an apocalyptic number.

It is an amenable number.

55311636 is an abundant number, since it is smaller than the sum of its proper divisors (73748876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55311636 is a wasteful number, since it uses less digits than its factorization.

55311636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609310 (or 4609308 counting only the distinct ones).

The product of its digits is 8100, while the sum is 30.

The square root of 55311636 is about 7437.1793040104. The cubic root of 55311636 is about 381.0121585252.

The spelling of 55311636 in words is "fifty-five million, three hundred eleven thousand, six hundred thirty-six".