180556252 has 24 divisors (see below), whose sum is σ = 337130640. Its totient is φ = 84314880.

The previous prime is 180556249. The next prime is 180556267. The reversal of 180556252 is 252655081.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1227 + ... + 19042.

It is an arithmetic number, because the mean of its divisors is an integer number (14047110).

Almost surely, 2^180556252 is an apocalyptic number.

It is an amenable number.

180556252 is a deficient number, since it is larger than the sum of its proper divisors (156574388).

180556252 is a wasteful number, since it uses less digits than its factorization.

180556252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20421 (or 20419 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 180556252 is about 13437.1221621298. The cubic root of 180556252 is about 565.2026338728.

The spelling of 180556252 in words is "one hundred eighty million, five hundred fifty-six thousand, two hundred fifty-two".