263225539 has 2 divisors, whose sum is σ = 263225540. Its totient is φ = 263225538.

The previous prime is 263225537. The next prime is 263225549. The reversal of 263225539 is 935522362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263225539 - 2¹ = 263225537 is a prime.

Together with 263225537, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 263225498 and 263225507.

It is not a weakly prime, because it can be changed into another prime (263225533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131612769 + 131612770.

It is an arithmetic number, because the mean of its divisors is an integer number (131612770).

Almost surely, 2^263225539 is an apocalyptic number.

263225539 is a deficient number, since it is larger than the sum of its proper divisors (1).

263225539 is an equidigital number, since it uses as much as digits as its factorization.

263225539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 37.

The square root of 263225539 is about 16224.2269153264. The cubic root of 263225539 is about 640.8789510218.

The spelling of 263225539 in words is "two hundred sixty-three million, two hundred twenty-five thousand, five hundred thirty-nine".