522490849 has 2 divisors, whose sum is σ = 522490850. Its totient is φ = 522490848.

The previous prime is 522490847. The next prime is 522490889. The reversal of 522490849 is 948094225.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 522442449 + 48400 = 22857^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 522490849 - 2¹ = 522490847 is a prime.

Together with 522490847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (522490847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261245424 + 261245425.

It is an arithmetic number, because the mean of its divisors is an integer number (261245425).

Almost surely, 2^522490849 is an apocalyptic number.

It is an amenable number.

522490849 is a deficient number, since it is larger than the sum of its proper divisors (1).

522490849 is an equidigital number, since it uses as much as digits as its factorization.

522490849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 522490849 is about 22858.0587320971. The cubic root of 522490849 is about 805.4270840498.

The spelling of 522490849 in words is "five hundred twenty-two million, four hundred ninety thousand, eight hundred forty-nine".