545588557 has 2 divisors, whose sum is σ = 545588558. Its totient is φ = 545588556.

The previous prime is 545588539. The next prime is 545588581. The reversal of 545588557 is 755885545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398960676 + 146627881 = 19974^2 + 12109^2 .

It is a cyclic number.

It is not a de Polignac number, because 545588557 - 2¹⁹ = 545064269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545588587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272794278 + 272794279.

It is an arithmetic number, because the mean of its divisors is an integer number (272794279).

Almost surely, 2^545588557 is an apocalyptic number.

It is an amenable number.

545588557 is a deficient number, since it is larger than the sum of its proper divisors (1).

545588557 is an equidigital number, since it uses as much as digits as its factorization.

545588557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5600000, while the sum is 52.

The square root of 545588557 is about 23357.8371644294. The cubic root of 545588557 is about 817.1248488957.

The spelling of 545588557 in words is "five hundred forty-five million, five hundred eighty-eight thousand, five hundred fifty-seven".