55226187 has 6 divisors (see below), whose sum is σ = 79771172. Its totient is φ = 36817452.

The previous prime is 55226161. The next prime is 55226189. The reversal of 55226187 is 78162255.

It is a happy number.

55226187 is a `hidden beast` number, since 552 + 26 + 1 + 87 = 666.

It is not a de Polignac number, because 55226187 - 2¹⁵ = 55193419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55226189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3068113 + ... + 3068130.

Almost surely, 2^55226187 is an apocalyptic number.

55226187 is a deficient number, since it is larger than the sum of its proper divisors (24544985).

55226187 is a wasteful number, since it uses less digits than its factorization.

55226187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136249 (or 6136246 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 55226187 is about 7431.4323652981. The cubic root of 55226187 is about 380.8158533103.

The spelling of 55226187 in words is "fifty-five million, two hundred twenty-six thousand, one hundred eighty-seven".