55175566 has 8 divisors (see below), whose sum is σ = 82866384. Its totient is φ = 27553440.

The previous prime is 55175543. The next prime is 55175569. The reversal of 55175566 is 66557155.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55175569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15115 + ... + 18406.

It is an arithmetic number, because the mean of its divisors is an integer number (10358298).

Almost surely, 2^55175566 is an apocalyptic number.

55175566 is a deficient number, since it is larger than the sum of its proper divisors (27690818).

55175566 is a wasteful number, since it uses less digits than its factorization.

55175566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34346.

The product of its digits is 157500, while the sum is 40.

The square root of 55175566 is about 7428.0257134719. The cubic root of 55175566 is about 380.6994642487.

The spelling of 55175566 in words is "fifty-five million, one hundred seventy-five thousand, five hundred sixty-six".