55255180 has 12 divisors (see below), whose sum is σ = 116035920. Its totient is φ = 22102064.

The previous prime is 55255169. The next prime is 55255183. The reversal of 55255180 is 8155255.

It is not an unprimeable number, because it can be changed into a prime (55255183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381360 + ... + 1381399.

It is an arithmetic number, because the mean of its divisors is an integer number (9669660).

Almost surely, 2^55255180 is an apocalyptic number.

It is an amenable number.

55255180 is an abundant number, since it is smaller than the sum of its proper divisors (60780740).

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

55255180 is a wasteful number, since it uses less digits than its factorization.

55255180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762768 (or 2762766 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 55255180 is about 7433.3828099998. The cubic root of 55255180 is about 380.8824827064.

The spelling of 55255180 in words is "fifty-five million, two hundred fifty-five thousand, one hundred eighty".