263265043 has 16 divisors (see below), whose sum is σ = 284697504. Its totient is φ = 242542080.

The previous prime is 263265029. The next prime is 263265097. The reversal of 263265043 is 340562362.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 263265043 - 2¹⁷ = 263133971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263264996 and 263265014.

It is not an unprimeable number, because it can be changed into a prime (263265943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205521 + ... + 206797.

It is an arithmetic number, because the mean of its divisors is an integer number (17793594).

Almost surely, 2^263265043 is an apocalyptic number.

263265043 is a deficient number, since it is larger than the sum of its proper divisors (21432461).

263265043 is a wasteful number, since it uses less digits than its factorization.

263265043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 263265043 is about 16225.4443082462. Note that the first 3 decimals coincide. The cubic root of 263265043 is about 640.9110097343.

The spelling of 263265043 in words is "two hundred sixty-three million, two hundred sixty-five thousand, forty-three".