55543222 has 8 divisors (see below), whose sum is σ = 95216976. Its totient is φ = 23804232.

The previous prime is 55543219. The next prime is 55543231. The reversal of 55543222 is 22234555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983673 + ... + 1983700.

It is an arithmetic number, because the mean of its divisors is an integer number (11902122).

Almost surely, 2^55543222 is an apocalyptic number.

55543222 is a deficient number, since it is larger than the sum of its proper divisors (39673754).

55543222 is a wasteful number, since it uses less digits than its factorization.

55543222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967382.

The product of its digits is 12000, while the sum is 28.

The square root of 55543222 is about 7452.7325190161. The cubic root of 55543222 is about 381.5431753012.

Adding to 55543222 its reverse (22234555), we get a palindrome (77777777).

The spelling of 55543222 in words is "fifty-five million, five hundred forty-three thousand, two hundred twenty-two".