55223166 has 16 divisors (see below), whose sum is σ = 113431824. Its totient is φ = 17910144.

The previous prime is 55223159. The next prime is 55223173. The reversal of 55223166 is 66132255.

It is an interprime number because it is at equal distance from previous prime (55223159) and next prime (55223173).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124155 + ... + 124598.

It is an arithmetic number, because the mean of its divisors is an integer number (7089489).

Almost surely, 2^55223166 is an apocalyptic number.

55223166 is an abundant number, since it is smaller than the sum of its proper divisors (58208658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55223166 is a wasteful number, since it uses less digits than its factorization.

55223166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248795.

The product of its digits is 10800, while the sum is 30.

The square root of 55223166 is about 7431.2291042599. The cubic root of 55223166 is about 380.8089093480.

The spelling of 55223166 in words is "fifty-five million, two hundred twenty-three thousand, one hundred sixty-six".