54665189 has 2 divisors, whose sum is σ = 54665190. Its totient is φ = 54665188.

The previous prime is 54665179. The next prime is 54665197. The reversal of 54665189 is 98156645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44328964 + 10336225 = 6658^2 + 3215^2 .

It is a cyclic number.

It is not a de Polignac number, because 54665189 - 2⁴ = 54665173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54665159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27332594 + 27332595.

It is an arithmetic number, because the mean of its divisors is an integer number (27332595).

Almost surely, 2^54665189 is an apocalyptic number.

It is an amenable number.

54665189 is a deficient number, since it is larger than the sum of its proper divisors (1).

54665189 is an equidigital number, since it uses as much as digits as its factorization.

54665189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 44.

The square root of 54665189 is about 7393.5910760604. The cubic root of 54665189 is about 379.5219959211.

The spelling of 54665189 in words is "fifty-four million, six hundred sixty-five thousand, one hundred eighty-nine".