504994489 has 2 divisors, whose sum is σ = 504994490. Its totient is φ = 504994488.

The previous prime is 504994471. The next prime is 504994517. The reversal of 504994489 is 984499405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493195264 + 11799225 = 22208^2 + 3435^2 .

It is a cyclic number.

It is not a de Polignac number, because 504994489 - 2¹¹ = 504992441 is a prime.

It is a super-2 number, since 2×504994489² = 510038867840742242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (504994289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252497244 + 252497245.

It is an arithmetic number, because the mean of its divisors is an integer number (252497245).

Almost surely, 2^504994489 is an apocalyptic number.

It is an amenable number.

504994489 is a deficient number, since it is larger than the sum of its proper divisors (1).

504994489 is an equidigital number, since it uses as much as digits as its factorization.

504994489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 504994489 is about 22472.0824357691. The cubic root of 504994489 is about 796.3345273924.

The spelling of 504994489 in words is "five hundred four million, nine hundred ninety-four thousand, four hundred eighty-nine".