522266609 has 2 divisors, whose sum is σ = 522266610. Its totient is φ = 522266608.

The previous prime is 522266599. The next prime is 522266617. The reversal of 522266609 is 906662225.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377136400 + 145130209 = 19420^2 + 12047^2 .

It is a cyclic number.

It is not a de Polignac number, because 522266609 - 2²⁴ = 505489393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (522266659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261133304 + 261133305.

It is an arithmetic number, because the mean of its divisors is an integer number (261133305).

Almost surely, 2^522266609 is an apocalyptic number.

It is an amenable number.

522266609 is a deficient number, since it is larger than the sum of its proper divisors (1).

522266609 is an equidigital number, since it uses as much as digits as its factorization.

522266609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 522266609 is about 22853.1531522458. The cubic root of 522266609 is about 805.3118445112.

The spelling of 522266609 in words is "five hundred twenty-two million, two hundred sixty-six thousand, six hundred nine".