55380036 has 12 divisors (see below), whose sum is σ = 129220112. Its totient is φ = 18460008.

The previous prime is 55380019. The next prime is 55380047. The reversal of 55380036 is 63008355.

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

It is a super-2 number, since 2×55380036² = 6133896774722592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55379985 and 55380012.

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, 2307490 + ... + 2307513.

Almost surely, 2^55380036 is an apocalyptic number.

It is an amenable number.

55380036 is an abundant number, since it is smaller than the sum of its proper divisors (73840076).

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

55380036 is a wasteful number, since it uses less digits than its factorization.

55380036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615010 (or 4615008 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 55380036 is about 7441.7764008333. The cubic root of 55380036 is about 381.1691507858.

The spelling of 55380036 in words is "fifty-five million, three hundred eighty thousand, thirty-six".