55185798 has 8 divisors (see below), whose sum is σ = 110371608. Its totient is φ = 18395264.

The previous prime is 55185761. The next prime is 55185803. The reversal of 55185798 is 89758155.

It is a sphenic number, since it is the product of 3 distinct primes.

55185798 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4598811 + ... + 4598822.

It is an arithmetic number, because the mean of its divisors is an integer number (13796451).

Almost surely, 2^55185798 is an apocalyptic number.

55185798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55185798 is a wasteful number, since it uses less digits than its factorization.

55185798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9197638.

The product of its digits is 504000, while the sum is 48.

The square root of 55185798 is about 7428.7144244479. The cubic root of 55185798 is about 380.7229956560.

The spelling of 55185798 in words is "fifty-five million, one hundred eighty-five thousand, seven hundred ninety-eight".