55190171 has 4 divisors (see below), whose sum is σ = 55208112. Its totient is φ = 55172232.

The previous prime is 55190167. The next prime is 55190189. The reversal of 55190171 is 17109155.

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

It is a cyclic number.

It is not a de Polignac number, because 55190171 - 2² = 55190167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55190101) 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, 3056 + ... + 10941.

It is an arithmetic number, because the mean of its divisors is an integer number (13802028).

Almost surely, 2^55190171 is an apocalyptic number.

55190171 is a deficient number, since it is larger than the sum of its proper divisors (17941).

55190171 is a wasteful number, since it uses less digits than its factorization.

55190171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17940.

The product of its (nonzero) digits is 1575, while the sum is 29.

The square root of 55190171 is about 7429.0087494901. The cubic root of 55190171 is about 380.7330517317.

The spelling of 55190171 in words is "fifty-five million, one hundred ninety thousand, one hundred seventy-one".