54165889 has 2 divisors, whose sum is σ = 54165890. Its totient is φ = 54165888.

The previous prime is 54165871. The next prime is 54165899. The reversal of 54165889 is 98856145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52316289 + 1849600 = 7233^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 54165889 - 2²⁵ = 20611457 is a prime.

It is not a weakly prime, because it can be changed into another prime (54165809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27082944 + 27082945.

It is an arithmetic number, because the mean of its divisors is an integer number (27082945).

Almost surely, 2^54165889 is an apocalyptic number.

It is an amenable number.

54165889 is a deficient number, since it is larger than the sum of its proper divisors (1).

54165889 is an equidigital number, since it uses as much as digits as its factorization.

54165889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 46.

The square root of 54165889 is about 7359.7478897038. The cubic root of 54165889 is about 378.3629693816.

It can be divided in two parts, 541 and 65889, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 54165889 in words is "fifty-four million, one hundred sixty-five thousand, eight hundred eighty-nine".