55450185 has 16 divisors (see below), whose sum is σ = 101394816. Its totient is φ = 25348608.

The previous prime is 55450169. The next prime is 55450193. The reversal of 55450185 is 58105455.

It is not a de Polignac number, because 55450185 - 2⁴ = 55450169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263944 + ... + 264153.

It is an arithmetic number, because the mean of its divisors is an integer number (6337176).

Almost surely, 2^55450185 is an apocalyptic number.

It is an amenable number.

55450185 is a deficient number, since it is larger than the sum of its proper divisors (45944631).

55450185 is a wasteful number, since it uses less digits than its factorization.

55450185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528112.

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 55450185 is about 7446.4880984260. The cubic root of 55450185 is about 381.3300231556.

The spelling of 55450185 in words is "fifty-five million, four hundred fifty thousand, one hundred eighty-five".