500525521 has 2 divisors, whose sum is σ = 500525522. Its totient is φ = 500525520.

The previous prime is 500525489. The next prime is 500525533. The reversal of 500525521 is 125525005.

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., 443734225 + 56791296 = 21065^2 + 7536^2 .

It is a cyclic number.

It is not a de Polignac number, because 500525521 - 2⁵ = 500525489 is a prime.

It is not a weakly prime, because it can be changed into another prime (500525551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250262760 + 250262761.

It is an arithmetic number, because the mean of its divisors is an integer number (250262761).

Almost surely, 2^500525521 is an apocalyptic number.

It is an amenable number.

500525521 is a deficient number, since it is larger than the sum of its proper divisors (1).

500525521 is an equidigital number, since it uses as much as digits as its factorization.

500525521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 500525521 is about 22372.4276957151. The cubic root of 500525521 is about 793.9784994823.

The spelling of 500525521 in words is "five hundred million, five hundred twenty-five thousand, five hundred twenty-one".