55165671 has 32 divisors (see below), whose sum is σ = 90201600. Its totient is φ = 33042240.

The previous prime is 55165637. The next prime is 55165681. The reversal of 55165671 is 17656155.

It is not a de Polignac number, because 55165671 - 2¹⁴ = 55149287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55165601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25390 + ... + 27476.

It is an arithmetic number, because the mean of its divisors is an integer number (2818800).

Almost surely, 2^55165671 is an apocalyptic number.

55165671 is a deficient number, since it is larger than the sum of its proper divisors (35035929).

55165671 is a wasteful number, since it uses less digits than its factorization.

55165671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196 (or 2190 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 55165671 is about 7427.3596250619. The cubic root of 55165671 is about 380.6767051019.

The spelling of 55165671 in words is "fifty-five million, one hundred sixty-five thousand, six hundred seventy-one".