263453263 has 4 divisors (see below), whose sum is σ = 263555440. Its totient is φ = 263351088.

The previous prime is 263453243. The next prime is 263453273. The reversal of 263453263 is 362354362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263453263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263453213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47118 + ... + 52411.

It is an arithmetic number, because the mean of its divisors is an integer number (65888860).

Almost surely, 2^263453263 is an apocalyptic number.

263453263 is a deficient number, since it is larger than the sum of its proper divisors (102177).

263453263 is an equidigital number, since it uses as much as digits as its factorization.

263453263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102176.

The product of its digits is 77760, while the sum is 34.

The square root of 263453263 is about 16231.2434212540. The cubic root of 263453263 is about 641.0637120349.

The spelling of 263453263 in words is "two hundred sixty-three million, four hundred fifty-three thousand, two hundred sixty-three".