263225805 has 16 divisors (see below), whose sum is σ = 434747904. Its totient is φ = 135858240.

The previous prime is 263225789. The next prime is 263225813. The reversal of 263225805 is 508522362.

263225805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 263225805 - 2⁴ = 263225789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282574 + ... + 283503.

It is an arithmetic number, because the mean of its divisors is an integer number (27171744).

Almost surely, 2^263225805 is an apocalyptic number.

It is an amenable number.

263225805 is a deficient number, since it is larger than the sum of its proper divisors (171522099).

263225805 is a wasteful number, since it uses less digits than its factorization.

263225805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566116.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 263225805 is about 16224.2351129414. The cubic root of 263225805 is about 640.8791668997.

The spelling of 263225805 in words is "two hundred sixty-three million, two hundred twenty-five thousand, eight hundred five".