55531716 has 48 divisors (see below), whose sum is σ = 133116480. Its totient is φ = 18011520.

The previous prime is 55531711. The next prime is 55531733. The reversal of 55531716 is 61713555.

55531716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55531711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77970 + ... + 78678.

It is an arithmetic number, because the mean of its divisors is an integer number (2773260).

Almost surely, 2^55531716 is an apocalyptic number.

It is an amenable number.

55531716 is an abundant number, since it is smaller than the sum of its proper divisors (77584764).

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

55531716 is a wasteful number, since it uses less digits than its factorization.

55531716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 882 counting only the distinct ones).

The product of its digits is 15750, while the sum is 33.

The square root of 55531716 is about 7451.9605473996. The cubic root of 55531716 is about 381.5168274182.

The spelling of 55531716 in words is "fifty-five million, five hundred thirty-one thousand, seven hundred sixteen".