55382816 has 12 divisors (see below), whose sum is σ = 109034982. Its totient is φ = 27691392.

The previous prime is 55382797. The next prime is 55382819. The reversal of 55382816 is 61828355.

It can be written as a sum of positive squares in only one way, i.e., 52128400 + 3254416 = 7220^2 + 1804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55382816.

It is not an unprimeable number, because it can be changed into a prime (55382819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 865325 + ... + 865388.

Almost surely, 2^55382816 is an apocalyptic number.

It is an amenable number.

55382816 is a deficient number, since it is larger than the sum of its proper divisors (53652166).

55382816 is a wasteful number, since it uses less digits than its factorization.

55382816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730723 (or 1730715 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 55382816 is about 7441.9631818493. The cubic root of 55382816 is about 381.1755287310.

The spelling of 55382816 in words is "fifty-five million, three hundred eighty-two thousand, eight hundred sixteen".