264997523 has 8 divisors (see below), whose sum is σ = 305034240. Its totient is φ = 225505800.

The previous prime is 264997493. The next prime is 264997531. The reversal of 264997523 is 325799462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264997523 - 2¹⁰ = 264996499 is a prime.

It is a super-2 number, since 2×264997523² = 140447374392271058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264997553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135203 + ... + 137148.

It is an arithmetic number, because the mean of its divisors is an integer number (38129280).

Almost surely, 2^264997523 is an apocalyptic number.

264997523 is a deficient number, since it is larger than the sum of its proper divisors (40036717).

264997523 is a wasteful number, since it uses less digits than its factorization.

264997523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272497.

The product of its digits is 816480, while the sum is 47.

The square root of 264997523 is about 16278.7445154717. The cubic root of 264997523 is about 642.3138275716.

The spelling of 264997523 in words is "two hundred sixty-four million, nine hundred ninety-seven thousand, five hundred twenty-three".