55378160 has 40 divisors (see below), whose sum is σ = 135534480. Its totient is φ = 20984832.

The previous prime is 55378157. The next prime is 55378177. The reversal of 55378160 is 6187355.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 55378160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16697 + ... + 19736.

It is an arithmetic number, because the mean of its divisors is an integer number (3388362).

Almost surely, 2^55378160 is an apocalyptic number.

It is an amenable number.

55378160 is an abundant number, since it is smaller than the sum of its proper divisors (80156320).

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

55378160 is a wasteful number, since it uses less digits than its factorization.

55378160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36465 (or 36459 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 55378160 is about 7441.6503545921. The cubic root of 55378160 is about 381.1648466993.

The spelling of 55378160 in words is "fifty-five million, three hundred seventy-eight thousand, one hundred sixty".