55162166 has 4 divisors (see below), whose sum is σ = 82743252. Its totient is φ = 27581082.

The previous prime is 55162141. The next prime is 55162189. The reversal of 55162166 is 66126155.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13790540 + ... + 13790543.

It is an arithmetic number, because the mean of its divisors is an integer number (20685813).

Almost surely, 2^55162166 is an apocalyptic number.

55162166 is a deficient number, since it is larger than the sum of its proper divisors (27581086).

55162166 is a wasteful number, since it uses less digits than its factorization.

55162166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27581085.

The product of its digits is 10800, while the sum is 32.

The square root of 55162166 is about 7427.1236693622. The cubic root of 55162166 is about 380.6686427201.

The spelling of 55162166 in words is "fifty-five million, one hundred sixty-two thousand, one hundred sixty-six".