55317798 has 24 divisors (see below), whose sum is σ = 121022928. Its totient is φ = 18259632.

The previous prime is 55317781. The next prime is 55317803. The reversal of 55317798 is 89771355.

55317798 is a `hidden beast` number, since 553 + 1 + 7 + 7 + 98 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13065 + ... + 16772.

It is an arithmetic number, because the mean of its divisors is an integer number (5042622).

Almost surely, 2^55317798 is an apocalyptic number.

55317798 is an abundant number, since it is smaller than the sum of its proper divisors (65705130).

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

55317798 is a wasteful number, since it uses less digits than its factorization.

55317798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29948 (or 29945 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 55317798 is about 7437.5935624367. The cubic root of 55317798 is about 381.0263069028.

The spelling of 55317798 in words is "fifty-five million, three hundred seventeen thousand, seven hundred ninety-eight".