543855457 has 2 divisors, whose sum is σ = 543855458. Its totient is φ = 543855456.

The previous prime is 543855437. The next prime is 543855467. The reversal of 543855457 is 754558345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305585361 + 238270096 = 17481^2 + 15436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543855457 is a prime.

It is not a weakly prime, because it can be changed into another prime (543855437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271927728 + 271927729.

It is an arithmetic number, because the mean of its divisors is an integer number (271927729).

Almost surely, 2^543855457 is an apocalyptic number.

It is an amenable number.

543855457 is a deficient number, since it is larger than the sum of its proper divisors (1).

543855457 is an equidigital number, since it uses as much as digits as its factorization.

543855457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680000, while the sum is 46.

The square root of 543855457 is about 23320.7087585262. The cubic root of 543855457 is about 816.2587131612.

The spelling of 543855457 in words is "five hundred forty-three million, eight hundred fifty-five thousand, four hundred fifty-seven".