16263025225 has 6 divisors (see below), whose sum is σ = 20166151310. Its totient is φ = 13010420160.

The previous prime is 16263025223. The next prime is 16263025237. The reversal of 16263025225 is 52252036261.

It can be written as a sum of positive squares in 3 ways, for example, as 3404372409 + 12858652816 = 58347^2 + 113396^2 .

It is not a de Polignac number, because 16263025225 - 2¹ = 16263025223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16263025223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325260480 + ... + 325260529.

Almost surely, 2^16263025225 is an apocalyptic number.

It is an amenable number.

16263025225 is a deficient number, since it is larger than the sum of its proper divisors (3903126085).

16263025225 is an equidigital number, since it uses as much as digits as its factorization.

16263025225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650521019 (or 650521014 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 16263025225 in words is "sixteen billion, two hundred sixty-three million, twenty-five thousand, two hundred twenty-five".