499589549 has 2 divisors, whose sum is σ = 499589550. Its totient is φ = 499589548.

The previous prime is 499589539. The next prime is 499589561. The reversal of 499589549 is 945985994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 495952900 + 3636649 = 22270^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 499589549 - 2¹² = 499585453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 499589491 and 499589500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499589539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249794774 + 249794775.

It is an arithmetic number, because the mean of its divisors is an integer number (249794775).

Almost surely, 2^499589549 is an apocalyptic number.

It is an amenable number.

499589549 is a deficient number, since it is larger than the sum of its proper divisors (1).

499589549 is an equidigital number, since it uses as much as digits as its factorization.

499589549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20995200, while the sum is 62.

The square root of 499589549 is about 22351.4999272979. The cubic root of 499589549 is about 793.4832830785.

The spelling of 499589549 in words is "four hundred ninety-nine million, five hundred eighty-nine thousand, five hundred forty-nine".