55166671 has 16 divisors (see below), whose sum is σ = 68659200. Its totient is φ = 43249248.

The previous prime is 55166669. The next prime is 55166677. The reversal of 55166671 is 17666155.

It is not a de Polignac number, because 55166671 - 2¹ = 55166669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55166671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55166677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3295 + ... + 11008.

It is an arithmetic number, because the mean of its divisors is an integer number (4291200).

Almost surely, 2^55166671 is an apocalyptic number.

55166671 is a deficient number, since it is larger than the sum of its proper divisors (13492529).

55166671 is a wasteful number, since it uses less digits than its factorization.

55166671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14358.

The product of its digits is 37800, while the sum is 37.

The square root of 55166671 is about 7427.4269434307. The cubic root of 55166671 is about 380.6790052909.

It can be divided in two parts, 551 and 66671, that multiplied together give a square (36735721 = 6061²).

The spelling of 55166671 in words is "fifty-five million, one hundred sixty-six thousand, six hundred seventy-one".