55716320 has 48 divisors (see below), whose sum is σ = 143600688. Its totient is φ = 20259840.

The previous prime is 55716319. The next prime is 55716371. The reversal of 55716320 is 2361755.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14069 + ... + 17588.

It is an arithmetic number, because the mean of its divisors is an integer number (2991681).

Almost surely, 2^55716320 is an apocalyptic number.

It is an amenable number.

55716320 is an abundant number, since it is smaller than the sum of its proper divisors (87884368).

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

55716320 is a wasteful number, since it uses less digits than its factorization.

55716320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31683 (or 31675 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 55716320 is about 7464.3365411803. The cubic root of 55716320 is about 381.9391184281.

The spelling of 55716320 in words is "fifty-five million, seven hundred sixteen thousand, three hundred twenty".