55166251 has 8 divisors (see below), whose sum is σ = 63283680. Its totient is φ = 47107968.

The previous prime is 55166231. The next prime is 55166263. The reversal of 55166251 is 15266155.

55166251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55166251 - 2¹¹ = 55164203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55166231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12766 + ... + 16531.

It is an arithmetic number, because the mean of its divisors is an integer number (7910460).

Almost surely, 2^55166251 is an apocalyptic number.

55166251 is a deficient number, since it is larger than the sum of its proper divisors (8117429).

55166251 is a wasteful number, since it uses less digits than its factorization.

55166251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29573.

The product of its digits is 9000, while the sum is 31.

The square root of 55166251 is about 7427.3986697901. The cubic root of 55166251 is about 380.6780392149.

The spelling of 55166251 in words is "fifty-five million, one hundred sixty-six thousand, two hundred fifty-one".