55040060 has 12 divisors (see below), whose sum is σ = 115584168. Its totient is φ = 22016016.

The previous prime is 55040059. The next prime is 55040071. The reversal of 55040060 is 6004055.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2752003 = 55040060 / (5 + 5 + 0 + 4 + 0 + 0 + 6 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375982 + ... + 1376021.

It is an arithmetic number, because the mean of its divisors is an integer number (9632014).

Almost surely, 2^55040060 is an apocalyptic number.

It is an amenable number.

55040060 is an abundant number, since it is smaller than the sum of its proper divisors (60544108).

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

55040060 is a wasteful number, since it uses less digits than its factorization.

55040060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752012 (or 2752010 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55040060 is about 7418.8988401245. The cubic root of 55040060 is about 380.3875547444.

The spelling of 55040060 in words is "fifty-five million, forty thousand, sixty".