54165887 has 4 divisors (see below), whose sum is σ = 54184296. Its totient is φ = 54147480.

The previous prime is 54165871. The next prime is 54165889. The reversal of 54165887 is 78856145.

It is a happy number.

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 54165887 - 2⁴ = 54165871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54165889) 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, 3689 + ... + 11042.

It is an arithmetic number, because the mean of its divisors is an integer number (13546074).

Almost surely, 2^54165887 is an apocalyptic number.

54165887 is a deficient number, since it is larger than the sum of its proper divisors (18409).

54165887 is a wasteful number, since it uses less digits than its factorization.

54165887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18408.

The product of its digits is 268800, while the sum is 44.

The square root of 54165887 is about 7359.7477538296. The cubic root of 54165887 is about 378.3629647247.

The spelling of 54165887 in words is "fifty-four million, one hundred sixty-five thousand, eight hundred eighty-seven".