264987523 has 2 divisors, whose sum is σ = 264987524. Its totient is φ = 264987522.

The previous prime is 264987521. The next prime is 264987553. The reversal of 264987523 is 325789462.

It is a weak prime.

264987523 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 264987523 - 2¹ = 264987521 is a prime.

Together with 264987521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (264987521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132493761 + 132493762.

It is an arithmetic number, because the mean of its divisors is an integer number (132493762).

Almost surely, 2^264987523 is an apocalyptic number.

264987523 is a deficient number, since it is larger than the sum of its proper divisors (1).

264987523 is an equidigital number, since it uses as much as digits as its factorization.

264987523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The square root of 264987523 is about 16278.4373635801. The cubic root of 264987523 is about 642.3057479753.

The spelling of 264987523 in words is "two hundred sixty-four million, nine hundred eighty-seven thousand, five hundred twenty-three".