55180338 has 16 divisors (see below), whose sum is σ = 110449920. Its totient is φ = 18378576.

The previous prime is 55180337. The next prime is 55180343. The reversal of 55180338 is 83308155.

It is a junction number, because it is equal to n+sod(n) for n = 55180299 and 55180308.

It is not an unprimeable number, because it can be changed into a prime (55180337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6468 + ... + 12336.

It is an arithmetic number, because the mean of its divisors is an integer number (6903120).

Almost surely, 2^55180338 is an apocalyptic number.

55180338 is an abundant number, since it is smaller than the sum of its proper divisors (55269582).

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

55180338 is a wasteful number, since it uses less digits than its factorization.

55180338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7441.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 55180338 is about 7428.3469224317. The cubic root of 55180338 is about 380.7104391880.

The spelling of 55180338 in words is "fifty-five million, one hundred eighty thousand, three hundred thirty-eight".