55663360 has 36 divisors (see below), whose sum is σ = 133334208. Its totient is φ = 22264832.

The previous prime is 55663343. The next prime is 55663367. The reversal of 55663360 is 6336655.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55663367) 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, 20464 + ... + 23023.

It is an arithmetic number, because the mean of its divisors is an integer number (3703728).

Almost surely, 2^55663360 is an apocalyptic number.

It is an amenable number.

55663360 is an abundant number, since it is smaller than the sum of its proper divisors (77670848).

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

55663360 is an equidigital number, since it uses as much as digits as its factorization.

55663360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43508 (or 43494 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 34.

The square root of 55663360 is about 7460.7881621180. The cubic root of 55663360 is about 381.8180652786.

The spelling of 55663360 in words is "fifty-five million, six hundred sixty-three thousand, three hundred sixty".