263225073 has 4 divisors (see below), whose sum is σ = 350966768. Its totient is φ = 175483380.

The previous prime is 263225057. The next prime is 263225099. The reversal of 263225073 is 370522362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 263225073 - 2⁴ = 263225057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 263225073.

It is not an unprimeable number, because it can be changed into a prime (263225033) 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, 43870843 + ... + 43870848.

It is an arithmetic number, because the mean of its divisors is an integer number (87741692).

Almost surely, 2^263225073 is an apocalyptic number.

It is an amenable number.

263225073 is a deficient number, since it is larger than the sum of its proper divisors (87741695).

263225073 is an equidigital number, since it uses as much as digits as its factorization.

263225073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87741694.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 263225073 is about 16224.2125540810. The cubic root of 263225073 is about 640.8785728293.

The spelling of 263225073 in words is "two hundred sixty-three million, two hundred twenty-five thousand, seventy-three".