54864569 has 2 divisors, whose sum is σ = 54864570. Its totient is φ = 54864568.

The previous prime is 54864553. The next prime is 54864581. The reversal of 54864569 is 96546845.

54864569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40704400 + 14160169 = 6380^2 + 3763^2 .

It is a cyclic number.

It is not a de Polignac number, because 54864569 - 2⁴ = 54864553 is a prime.

It is a super-2 number, since 2×54864569² = 6020241863111522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54864529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27432284 + 27432285.

It is an arithmetic number, because the mean of its divisors is an integer number (27432285).

Almost surely, 2^54864569 is an apocalyptic number.

It is an amenable number.

54864569 is a deficient number, since it is larger than the sum of its proper divisors (1).

54864569 is an equidigital number, since it uses as much as digits as its factorization.

54864569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 47.

The square root of 54864569 is about 7407.0621031553. The cubic root of 54864569 is about 379.9828454860.

The spelling of 54864569 in words is "fifty-four million, eight hundred sixty-four thousand, five hundred sixty-nine".