263265345 has 48 divisors (see below), whose sum is σ = 524639232. Its totient is φ = 119629440.

The previous prime is 263265341. The next prime is 263265371. The reversal of 263265345 is 543562362.

It is not a de Polignac number, because 263265345 - 2² = 263265341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (263265341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52080 + ... + 56910.

It is an arithmetic number, because the mean of its divisors is an integer number (10929984).

Almost surely, 2^263265345 is an apocalyptic number.

It is an amenable number.

263265345 is a deficient number, since it is larger than the sum of its proper divisors (261373887).

263265345 is a wasteful number, since it uses less digits than its factorization.

263265345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022 (or 5019 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 263265345 is about 16225.4536146143. The cubic root of 263265345 is about 640.9112548043.

The spelling of 263265345 in words is "two hundred sixty-three million, two hundred sixty-five thousand, three hundred forty-five".