522505253 has 2 divisors, whose sum is σ = 522505254. Its totient is φ = 522505252.

The previous prime is 522505213. The next prime is 522505261. The reversal of 522505253 is 352505225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361266049 + 161239204 = 19007^2 + 12698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-522505253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522505213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261252626 + 261252627.

It is an arithmetic number, because the mean of its divisors is an integer number (261252627).

Almost surely, 2^522505253 is an apocalyptic number.

It is an amenable number.

522505253 is a deficient number, since it is larger than the sum of its proper divisors (1).

522505253 is an equidigital number, since it uses as much as digits as its factorization.

522505253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 522505253 is about 22858.3738048007. The cubic root of 522505253 is about 805.4344853055.

The spelling of 522505253 in words is "five hundred twenty-two million, five hundred five thousand, two hundred fifty-three".