264526489 has 2 divisors, whose sum is σ = 264526490. Its totient is φ = 264526488.

The previous prime is 264526463. The next prime is 264526499. The reversal of 264526489 is 984625462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137288089 + 127238400 = 11717^2 + 11280^2 .

It is a cyclic number.

It is not a de Polignac number, because 264526489 - 2¹³ = 264518297 is a prime.

It is not a weakly prime, because it can be changed into another prime (264526459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132263244 + 132263245.

It is an arithmetic number, because the mean of its divisors is an integer number (132263245).

Almost surely, 2^264526489 is an apocalyptic number.

It is an amenable number.

264526489 is a deficient number, since it is larger than the sum of its proper divisors (1).

264526489 is an equidigital number, since it uses as much as digits as its factorization.

264526489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 46.

The square root of 264526489 is about 16264.2703187078. The cubic root of 264526489 is about 641.9330301872.

The spelling of 264526489 in words is "two hundred sixty-four million, five hundred twenty-six thousand, four hundred eighty-nine".