55306226 has 16 divisors (see below), whose sum is σ = 87871200. Its totient is φ = 26034048.

The previous prime is 55306217. The next prime is 55306243. The reversal of 55306226 is 62260355.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730 + ... + 10658.

It is an arithmetic number, because the mean of its divisors is an integer number (5491950).

Almost surely, 2^55306226 is an apocalyptic number.

55306226 is a deficient number, since it is larger than the sum of its proper divisors (32564974).

55306226 is a wasteful number, since it uses less digits than its factorization.

55306226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9113.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 55306226 is about 7436.8155819544. The cubic root of 55306226 is about 380.9997359252. Note that the first 3 decimals are identical.

The spelling of 55306226 in words is "fifty-five million, three hundred six thousand, two hundred twenty-six".