264262657 has 2 divisors, whose sum is σ = 264262658. Its totient is φ = 264262656.

The previous prime is 264262651. The next prime is 264262679. The reversal of 264262657 is 756262462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216707841 + 47554816 = 14721^2 + 6896^2 .

It is a cyclic number.

It is not a de Polignac number, because 264262657 - 2¹⁹ = 263738369 is a prime.

It is not a weakly prime, because it can be changed into another prime (264262651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132131328 + 132131329.

It is an arithmetic number, because the mean of its divisors is an integer number (132131329).

Almost surely, 2^264262657 is an apocalyptic number.

It is an amenable number.

264262657 is a deficient number, since it is larger than the sum of its proper divisors (1).

264262657 is an equidigital number, since it uses as much as digits as its factorization.

264262657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 264262657 is about 16256.1575103097. The cubic root of 264262657 is about 641.7195432972.

The spelling of 264262657 in words is "two hundred sixty-four million, two hundred sixty-two thousand, six hundred fifty-seven".