264903257 has 2 divisors, whose sum is σ = 264903258. Its totient is φ = 264903256.

The previous prime is 264903253. The next prime is 264903271. The reversal of 264903257 is 752309462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191988736 + 72914521 = 13856^2 + 8539^2 .

It is a cyclic number.

It is not a de Polignac number, because 264903257 - 2² = 264903253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264903257.

It is not a weakly prime, because it can be changed into another prime (264903251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132451628 + 132451629.

It is an arithmetic number, because the mean of its divisors is an integer number (132451629).

Almost surely, 2^264903257 is an apocalyptic number.

It is an amenable number.

264903257 is a deficient number, since it is larger than the sum of its proper divisors (1).

264903257 is an equidigital number, since it uses as much as digits as its factorization.

264903257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 264903257 is about 16275.8488872317. The cubic root of 264903257 is about 642.2376563739.

The spelling of 264903257 in words is "two hundred sixty-four million, nine hundred three thousand, two hundred fifty-seven".