55222192 has 10 divisors (see below), whose sum is σ = 106993028. Its totient is φ = 27611088.

The previous prime is 55222187. The next prime is 55222199. The reversal of 55222192 is 29122255.

It is a self number, because there is not a number n which added to its sum of digits gives 55222192.

It is not an unprimeable number, because it can be changed into a prime (55222199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1725678 + ... + 1725709.

Almost surely, 2^55222192 is an apocalyptic number.

It is an amenable number.

55222192 is a deficient number, since it is larger than the sum of its proper divisors (51770836).

55222192 is a wasteful number, since it uses less digits than its factorization.

55222192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451395 (or 3451389 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 55222192 is about 7431.1635697245. The cubic root of 55222192 is about 380.8066704926.

The spelling of 55222192 in words is "fifty-five million, two hundred twenty-two thousand, one hundred ninety-two".