55312182 has 24 divisors (see below), whose sum is σ = 120379896. Its totient is φ = 18354816.

The previous prime is 55312181. The next prime is 55312189. The reversal of 55312182 is 28121355.

It is a happy number.

It is a super-2 number, since 2×55312182² = 6118874955202248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55312181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2683 + ... + 10854.

It is an arithmetic number, because the mean of its divisors is an integer number (5015829).

Almost surely, 2^55312182 is an apocalyptic number.

55312182 is an abundant number, since it is smaller than the sum of its proper divisors (65067714).

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

55312182 is a wasteful number, since it uses less digits than its factorization.

55312182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13772 (or 13769 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 55312182 is about 7437.2160113849. The cubic root of 55312182 is about 381.0134122213.

The spelling of 55312182 in words is "fifty-five million, three hundred twelve thousand, one hundred eighty-two".