263483543 has 4 divisors (see below), whose sum is σ = 263855880. Its totient is φ = 263111208.

The previous prime is 263483513. The next prime is 263483567. The reversal of 263483543 is 345384362.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345384362 = 2 ⋅172692181.

It is a cyclic number.

It is not a de Polignac number, because 263483543 - 2¹⁴ = 263467159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263483497 and 263483506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263483503) 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, 185105 + ... + 186522.

It is an arithmetic number, because the mean of its divisors is an integer number (65963970).

Almost surely, 2^263483543 is an apocalyptic number.

263483543 is a deficient number, since it is larger than the sum of its proper divisors (372337).

263483543 is an equidigital number, since it uses as much as digits as its factorization.

263483543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372336.

The product of its digits is 207360, while the sum is 38.

The square root of 263483543 is about 16232.1761634107. The cubic root of 263483543 is about 641.0882713126.

The spelling of 263483543 in words is "two hundred sixty-three million, four hundred eighty-three thousand, five hundred forty-three".