55790180 has 24 divisors (see below), whose sum is σ = 122254272. Its totient is φ = 21345632.

The previous prime is 55790179. The next prime is 55790197. The reversal of 55790180 is 8109755.

It is a super-2 number, since 2×55790180² = 6225088368864800, 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 55790180.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60182 + ... + 61101.

It is an arithmetic number, because the mean of its divisors is an integer number (5093928).

Almost surely, 2^55790180 is an apocalyptic number.

It is an amenable number.

55790180 is an abundant number, since it is smaller than the sum of its proper divisors (66464092).

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

55790180 is a wasteful number, since it uses less digits than its factorization.

55790180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121315 (or 121313 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 55790180 is about 7469.2824287210. The cubic root of 55790180 is about 382.1078156607.

The spelling of 55790180 in words is "fifty-five million, seven hundred ninety thousand, one hundred eighty".