55221196 has 12 divisors (see below), whose sum is σ = 96689152. Its totient is φ = 27595728.

The previous prime is 55221181. The next prime is 55221197. The reversal of 55221196 is 69112255.

It is not an unprimeable number, because it can be changed into a prime (55221197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12406 + ... + 16258.

Almost surely, 2^55221196 is an apocalyptic number.

It is an amenable number.

55221196 is a deficient number, since it is larger than the sum of its proper divisors (41467956).

55221196 is a wasteful number, since it uses less digits than its factorization.

55221196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7440 (or 7438 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 55221196 is about 7431.0965543451. The cubic root of 55221196 is about 380.8043810403.

The spelling of 55221196 in words is "fifty-five million, two hundred twenty-one thousand, one hundred ninety-six".