522474257 has 2 divisors, whose sum is σ = 522474258. Its totient is φ = 522474256.

The previous prime is 522474229. The next prime is 522474269. The reversal of 522474257 is 752474225.

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., 510805201 + 11669056 = 22601^2 + 3416^2 .

It is a cyclic number.

It is not a de Polignac number, because 522474257 - 2¹⁶ = 522408721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 522474257.

It is not a weakly prime, because it can be changed into another prime (522474157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261237128 + 261237129.

It is an arithmetic number, because the mean of its divisors is an integer number (261237129).

Almost surely, 2^522474257 is an apocalyptic number.

It is an amenable number.

522474257 is a deficient number, since it is larger than the sum of its proper divisors (1).

522474257 is an equidigital number, since it uses as much as digits as its factorization.

522474257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 38.

The square root of 522474257 is about 22857.6957937584. The cubic root of 522474257 is about 805.4185583582.

The spelling of 522474257 in words is "five hundred twenty-two million, four hundred seventy-four thousand, two hundred fifty-seven".