55198712 has 16 divisors (see below), whose sum is σ = 107997840. Its totient is φ = 26399296.

The previous prime is 55198691. The next prime is 55198721. The reversal of 55198712 is 21789155.

55198712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149813 + ... + 150180.

It is an arithmetic number, because the mean of its divisors is an integer number (6749865).

Almost surely, 2^55198712 is an apocalyptic number.

It is an amenable number.

55198712 is a deficient number, since it is larger than the sum of its proper divisors (52799128).

55198712 is a wasteful number, since it uses less digits than its factorization.

55198712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300022 (or 300018 counting only the distinct ones).

The product of its digits is 25200, while the sum is 38.

The square root of 55198712 is about 7429.5835684108. The cubic root of 55198712 is about 380.7526909368.

The spelling of 55198712 in words is "fifty-five million, one hundred ninety-eight thousand, seven hundred twelve".