55480178 has 24 divisors (see below), whose sum is σ = 91315308. Its totient is φ = 25131168.

The previous prime is 55480157. The next prime is 55480207. The reversal of 55480178 is 87108455.

It can be written as a sum of positive squares in 2 ways, for example, as 39853969 + 15626209 = 6313^2 + 3953^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90200 + ... + 90812.

Almost surely, 2^55480178 is an apocalyptic number.

55480178 is a deficient number, since it is larger than the sum of its proper divisors (35835130).

55480178 is a wasteful number, since it uses less digits than its factorization.

55480178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 55480178 is about 7448.5017285357. The cubic root of 55480178 is about 381.3987645546.

The spelling of 55480178 in words is "fifty-five million, four hundred eighty thousand, one hundred seventy-eight".