55166243 has 8 divisors (see below), whose sum is σ = 60315840. Its totient is φ = 50039080.

The previous prime is 55166231. The next prime is 55166263. The reversal of 55166243 is 34266155.

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

It is a cyclic number.

It is not a de Polignac number, because 55166243 - 2⁴ = 55166227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55166263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233 + ... + 10506.

It is an arithmetic number, because the mean of its divisors is an integer number (7539480).

Almost surely, 2^55166243 is an apocalyptic number.

55166243 is a deficient number, since it is larger than the sum of its proper divisors (5149597).

55166243 is a wasteful number, since it uses less digits than its factorization.

55166243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11217.

The product of its digits is 21600, while the sum is 32.

The square root of 55166243 is about 7427.3981312435. The cubic root of 55166243 is about 380.6780208134.

The spelling of 55166243 in words is "fifty-five million, one hundred sixty-six thousand, two hundred forty-three".