55192198 has 4 divisors (see below), whose sum is σ = 82788300. Its totient is φ = 27596098.

The previous prime is 55192187. The next prime is 55192201. The reversal of 55192198 is 89129155.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55192198.

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 as a sum of consecutive naturals, namely, 13798048 + ... + 13798051.

It is an arithmetic number, because the mean of its divisors is an integer number (20697075).

Almost surely, 2^55192198 is an apocalyptic number.

55192198 is a deficient number, since it is larger than the sum of its proper divisors (27596102).

55192198 is a wasteful number, since it uses less digits than its factorization.

55192198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27596101.

The product of its digits is 32400, while the sum is 40.

The square root of 55192198 is about 7429.1451728984. The cubic root of 55192198 is about 380.7377128059.

The spelling of 55192198 in words is "fifty-five million, one hundred ninety-two thousand, one hundred ninety-eight".