263353263 has 12 divisors (see below), whose sum is σ = 363666888. Its totient is φ = 169513120.

The previous prime is 263353261. The next prime is 263353301. The reversal of 263353263 is 362353362.

It is not a de Polignac number, because 263353263 - 2¹ = 263353261 is a prime.

It is a super-2 number, since 2×263353263² = 138709882265494338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263353261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49668 + ... + 54713.

It is an arithmetic number, because the mean of its divisors is an integer number (30305574).

Almost surely, 2^263353263 is an apocalyptic number.

263353263 is a deficient number, since it is larger than the sum of its proper divisors (100313625).

263353263 is a wasteful number, since it uses less digits than its factorization.

263353263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104442 (or 104413 counting only the distinct ones).

The product of its digits is 58320, while the sum is 33.

The square root of 263353263 is about 16228.1626501585. The cubic root of 263353263 is about 640.9825914050.

Subtracting 263353263 from its reverse (362353362), we obtain a palindrome (99000099).

The spelling of 263353263 in words is "two hundred sixty-three million, three hundred fifty-three thousand, two hundred sixty-three".