55196178 has 48 divisors (see below), whose sum is σ = 123444000. Its totient is φ = 16394112.

The previous prime is 55196171. The next prime is 55196191. The reversal of 55196178 is 87169155.

It is not an unprimeable number, because it can be changed into a prime (55196171) 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 23 ways as a sum of consecutive naturals, for example, 36073 + ... + 37571.

It is an arithmetic number, because the mean of its divisors is an integer number (2571750).

Almost surely, 2^55196178 is an apocalyptic number.

55196178 is an abundant number, since it is smaller than the sum of its proper divisors (68247822).

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

55196178 is a wasteful number, since it uses less digits than its factorization.

55196178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559 (or 1540 counting only the distinct ones).

The product of its digits is 75600, while the sum is 42.

The square root of 55196178 is about 7429.4130319965. The cubic root of 55196178 is about 380.7468644597.

The spelling of 55196178 in words is "fifty-five million, one hundred ninety-six thousand, one hundred seventy-eight".