55180252 has 6 divisors (see below), whose sum is σ = 96565448. Its totient is φ = 27590124.

The previous prime is 55180247. The next prime is 55180259. The reversal of 55180252 is 25208155.

It is a self number, because there is not a number n which added to its sum of digits gives 55180252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55180259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6897528 + ... + 6897535.

Almost surely, 2^55180252 is an apocalyptic number.

It is an amenable number.

55180252 is a deficient number, since it is larger than the sum of its proper divisors (41385196).

55180252 is a wasteful number, since it uses less digits than its factorization.

55180252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13795067 (or 13795065 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 55180252 is about 7428.3411337929. The cubic root of 55180252 is about 380.7102414055.

The spelling of 55180252 in words is "fifty-five million, one hundred eighty thousand, two hundred fifty-two".