55546222 has 4 divisors (see below), whose sum is σ = 83319336. Its totient is φ = 27773110.

The previous prime is 55546217. The next prime is 55546237. The reversal of 55546222 is 22264555.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13886554 + ... + 13886557.

It is an arithmetic number, because the mean of its divisors is an integer number (20829834).

Almost surely, 2^55546222 is an apocalyptic number.

55546222 is a deficient number, since it is larger than the sum of its proper divisors (27773114).

55546222 is a wasteful number, since it uses less digits than its factorization.

55546222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27773113.

The product of its digits is 24000, while the sum is 31.

The square root of 55546222 is about 7452.9337847589. The cubic root of 55546222 is about 381.5500444797.

The spelling of 55546222 in words is "fifty-five million, five hundred forty-six thousand, two hundred twenty-two".