264375569 has 2 divisors, whose sum is σ = 264375570. Its totient is φ = 264375568.

The previous prime is 264375523. The next prime is 264375577. The reversal of 264375569 is 965573462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264225025 + 150544 = 16255^2 + 388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264375569 is a prime.

It is a super-2 number, since 2×264375569² = 139788882968147522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264375589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132187784 + 132187785.

It is an arithmetic number, because the mean of its divisors is an integer number (132187785).

Almost surely, 2^264375569 is an apocalyptic number.

It is an amenable number.

264375569 is a deficient number, since it is larger than the sum of its proper divisors (1).

264375569 is an equidigital number, since it uses as much as digits as its factorization.

264375569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 47.

The square root of 264375569 is about 16259.6300388416. The cubic root of 264375569 is about 641.8109265200.

The spelling of 264375569 in words is "two hundred sixty-four million, three hundred seventy-five thousand, five hundred sixty-nine".