264252217 has 4 divisors (see below), whose sum is σ = 265712356. Its totient is φ = 262792080.

The previous prime is 264252203. The next prime is 264252251. The reversal of 264252217 is 712252462.

264252217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95667961 + 168584256 = 9781^2 + 12984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264252217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264253217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729798 + ... + 730159.

It is an arithmetic number, because the mean of its divisors is an integer number (66428089).

Almost surely, 2^264252217 is an apocalyptic number.

It is an amenable number.

264252217 is a deficient number, since it is larger than the sum of its proper divisors (1460139).

264252217 is a wasteful number, since it uses less digits than its factorization.

264252217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460138.

The product of its digits is 13440, while the sum is 31.

The square root of 264252217 is about 16255.8363980449. The cubic root of 264252217 is about 641.7110925632.

The spelling of 264252217 in words is "two hundred sixty-four million, two hundred fifty-two thousand, two hundred seventeen".