55578316 has 12 divisors (see below), whose sum is σ = 97962760. Its totient is φ = 27588960.

The previous prime is 55578311. The next prime is 55578323. The reversal of 55578316 is 61387555.

It is not an unprimeable number, because it can be changed into a prime (55578311) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 49425 + ... + 50536.

Almost surely, 2^55578316 is an apocalyptic number.

It is an amenable number.

55578316 is a deficient number, since it is larger than the sum of its proper divisors (42384444).

55578316 is a wasteful number, since it uses less digits than its factorization.

55578316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100104 (or 100102 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The square root of 55578316 is about 7455.0865856809. The cubic root of 55578316 is about 381.6235154798.

The spelling of 55578316 in words is "fifty-five million, five hundred seventy-eight thousand, three hundred sixteen".