55257716 has 12 divisors (see below), whose sum is σ = 96770688. Its totient is φ = 27608952.

The previous prime is 55257703. The next prime is 55257733. The reversal of 55257716 is 61775255.

55257716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55257716.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2525 + ... + 10811.

It is an arithmetic number, because the mean of its divisors is an integer number (8064224).

Almost surely, 2^55257716 is an apocalyptic number.

It is an amenable number.

55257716 is a deficient number, since it is larger than the sum of its proper divisors (41512972).

55257716 is a wasteful number, since it uses less digits than its factorization.

55257716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9958 (or 9956 counting only the distinct ones).

The product of its digits is 73500, while the sum is 38.

The square root of 55257716 is about 7433.5533898668. The cubic root of 55257716 is about 380.8883096304. Note that the first 3 decimals are identical.

The spelling of 55257716 in words is "fifty-five million, two hundred fifty-seven thousand, seven hundred sixteen".