263652457 has 2 divisors, whose sum is σ = 263652458. Its totient is φ = 263652456.

The previous prime is 263652449. The next prime is 263652481. The reversal of 263652457 is 754256362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263218176 + 434281 = 16224^2 + 659^2 .

It is a cyclic number.

It is not a de Polignac number, because 263652457 - 2³ = 263652449 is a prime.

It is not a weakly prime, because it can be changed into another prime (263652407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131826228 + 131826229.

It is an arithmetic number, because the mean of its divisors is an integer number (131826229).

Almost surely, 2^263652457 is an apocalyptic number.

It is an amenable number.

263652457 is a deficient number, since it is larger than the sum of its proper divisors (1).

263652457 is an equidigital number, since it uses as much as digits as its factorization.

263652457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 40.

The square root of 263652457 is about 16237.3783906147. The cubic root of 263652457 is about 641.2252383134.

The spelling of 263652457 in words is "two hundred sixty-three million, six hundred fifty-two thousand, four hundred fifty-seven".