55387182 has 32 divisors (see below), whose sum is σ = 114250752. Its totient is φ = 17889984.

The previous prime is 55387169. The next prime is 55387183. The reversal of 55387182 is 28178355.

It is a super-2 number, since 2×55387182² = 6135479859802248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55387182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55387183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34563 + ... + 36129.

It is an arithmetic number, because the mean of its divisors is an integer number (3570336).

Almost surely, 2^55387182 is an apocalyptic number.

55387182 is an abundant number, since it is smaller than the sum of its proper divisors (58863570).

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

55387182 is a wasteful number, since it uses less digits than its factorization.

55387182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752.

The product of its digits is 67200, while the sum is 39.

The square root of 55387182 is about 7442.2565126445. The cubic root of 55387182 is about 381.1855448862.

It can be divided in two parts, 5538 and 7182, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 55387182 in words is "fifty-five million, three hundred eighty-seven thousand, one hundred eighty-two".