55280680 has 64 divisors (see below), whose sum is σ = 153095040. Its totient is φ = 17494272.

The previous prime is 55280663. The next prime is 55280683. The reversal of 55280680 is 8608255.

It is not an unprimeable number, because it can be changed into a prime (55280683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3954 + ... + 11233.

It is an arithmetic number, because the mean of its divisors is an integer number (2392110).

Almost surely, 2^55280680 is an apocalyptic number.

It is an amenable number.

55280680 is an abundant number, since it is smaller than the sum of its proper divisors (97814360).

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

55280680 is a wasteful number, since it uses less digits than its factorization.

55280680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15218 (or 15214 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 55280680 is about 7435.0978473723. The cubic root of 55280680 is about 380.9410655072.

The spelling of 55280680 in words is "fifty-five million, two hundred eighty thousand, six hundred eighty".