55222556 has 24 divisors (see below), whose sum is σ = 99912960. Its totient is φ = 26690672.

The previous prime is 55222553. The next prime is 55222567. The reversal of 55222556 is 65522255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55222553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13835 + ... + 17373.

It is an arithmetic number, because the mean of its divisors is an integer number (4163040).

Almost surely, 2^55222556 is an apocalyptic number.

It is an amenable number.

55222556 is a deficient number, since it is larger than the sum of its proper divisors (44690404).

55222556 is a wasteful number, since it uses less digits than its factorization.

55222556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673 (or 3671 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 55222556 is about 7431.1880611380. The cubic root of 55222556 is about 380.8075071932.

The spelling of 55222556 in words is "fifty-five million, two hundred twenty-two thousand, five hundred fifty-six".