545422489 has 2 divisors, whose sum is σ = 545422490. Its totient is φ = 545422488.

The previous prime is 545422453. The next prime is 545422511. The reversal of 545422489 is 984224545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416486464 + 128936025 = 20408^2 + 11355^2 .

It is a cyclic number.

It is not a de Polignac number, because 545422489 - 2¹⁹ = 544898201 is a prime.

It is not a weakly prime, because it can be changed into another prime (545422429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272711244 + 272711245.

It is an arithmetic number, because the mean of its divisors is an integer number (272711245).

Almost surely, 2^545422489 is an apocalyptic number.

It is an amenable number.

545422489 is a deficient number, since it is larger than the sum of its proper divisors (1).

545422489 is an equidigital number, since it uses as much as digits as its factorization.

545422489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 43.

The square root of 545422489 is about 23354.2820270716. The cubic root of 545422489 is about 817.0419341192.

The spelling of 545422489 in words is "five hundred forty-five million, four hundred twenty-two thousand, four hundred eighty-nine".