530523691 has 2 divisors, whose sum is σ = 530523692. Its totient is φ = 530523690.

The previous prime is 530523689. The next prime is 530523713. The reversal of 530523691 is 196325035.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 530523691 - 2¹ = 530523689 is a prime.

Together with 530523689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (530523661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265261845 + 265261846.

It is an arithmetic number, because the mean of its divisors is an integer number (265261846).

Almost surely, 2^530523691 is an apocalyptic number.

530523691 is a deficient number, since it is larger than the sum of its proper divisors (1).

530523691 is an equidigital number, since it uses as much as digits as its factorization.

530523691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 530523691 is about 23033.0998999266. The cubic root of 530523691 is about 809.5336903474.

The spelling of 530523691 in words is "five hundred thirty million, five hundred twenty-three thousand, six hundred ninety-one".