55552236 has 12 divisors (see below), whose sum is σ = 129621912. Its totient is φ = 18517408.

The previous prime is 55552229. The next prime is 55552241. The reversal of 55552236 is 63225555.

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

It is a junction number, because it is equal to n+sod(n) for n = 55552197 and 55552206.

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, 2314665 + ... + 2314688.

It is an arithmetic number, because the mean of its divisors is an integer number (10801826).

Almost surely, 2^55552236 is an apocalyptic number.

It is an amenable number.

55552236 is an abundant number, since it is smaller than the sum of its proper divisors (74069676).

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

55552236 is a wasteful number, since it uses less digits than its factorization.

55552236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629360 (or 4629358 counting only the distinct ones).

The product of its digits is 45000, while the sum is 33.

The square root of 55552236 is about 7453.3372391164. The cubic root of 55552236 is about 381.5638141480.

The spelling of 55552236 in words is "fifty-five million, five hundred fifty-two thousand, two hundred thirty-six".