55153180 has 12 divisors (see below), whose sum is σ = 115821720. Its totient is φ = 22061264.

The previous prime is 55153129. The next prime is 55153207. The reversal of 55153180 is 8135155.

It is a super-2 number, since 2×55153180² = 6083746528224800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378810 + ... + 1378849.

It is an arithmetic number, because the mean of its divisors is an integer number (9651810).

Almost surely, 2^55153180 is an apocalyptic number.

It is an amenable number.

55153180 is an abundant number, since it is smaller than the sum of its proper divisors (60668540).

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

55153180 is a wasteful number, since it uses less digits than its factorization.

55153180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757668 (or 2757666 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 55153180 is about 7426.5186999024. The cubic root of 55153180 is about 380.6479710990.

The spelling of 55153180 in words is "fifty-five million, one hundred fifty-three thousand, one hundred eighty".