54512389 has 2 divisors, whose sum is σ = 54512390. Its totient is φ = 54512388.

The previous prime is 54512377. The next prime is 54512399. The reversal of 54512389 is 98321545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47032164 + 7480225 = 6858^2 + 2735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54512389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54512399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27256194 + 27256195.

It is an arithmetic number, because the mean of its divisors is an integer number (27256195).

Almost surely, 2^54512389 is an apocalyptic number.

It is an amenable number.

54512389 is a deficient number, since it is larger than the sum of its proper divisors (1).

54512389 is an equidigital number, since it uses as much as digits as its factorization.

54512389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The square root of 54512389 is about 7383.2505713947. The cubic root of 54512389 is about 379.1680529569.

The spelling of 54512389 in words is "fifty-four million, five hundred twelve thousand, three hundred eighty-nine".