545828557 has 2 divisors, whose sum is σ = 545828558. Its totient is φ = 545828556.

The previous prime is 545828539. The next prime is 545828573. The reversal of 545828557 is 755828545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493106436 + 52722121 = 22206^2 + 7261^2 .

It is a cyclic number.

It is not a de Polignac number, because 545828557 - 2⁷ = 545828429 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545828557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545828527) 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, 272914278 + 272914279.

It is an arithmetic number, because the mean of its divisors is an integer number (272914279).

Almost surely, 2^545828557 is an apocalyptic number.

It is an amenable number.

545828557 is a deficient number, since it is larger than the sum of its proper divisors (1).

545828557 is an equidigital number, since it uses as much as digits as its factorization.

545828557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240000, while the sum is 49.

The square root of 545828557 is about 23362.9740615359. The cubic root of 545828557 is about 817.2446468720.

The spelling of 545828557 in words is "five hundred forty-five million, eight hundred twenty-eight thousand, five hundred fifty-seven".