10999225 has 6 divisors (see below), whose sum is σ = 13639070. Its totient is φ = 8799360.

The previous prime is 10999223. The next prime is 10999229. The reversal of 10999225 is 52299901.

It can be written as a sum of positive squares in 3 ways, for example, as 3644281 + 7354944 = 1909^2 + 2712^2 .

It is not a de Polignac number, because 10999225 - 2¹ = 10999223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10999223) 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, 219960 + ... + 220009.

Almost surely, 2^10999225 is an apocalyptic number.

It is an amenable number.

10999225 is a deficient number, since it is larger than the sum of its proper divisors (2639845).

10999225 is an equidigital number, since it uses as much as digits as its factorization.

10999225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439979 (or 439974 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 10999225 is about 3316.5079526514. The cubic root of 10999225 is about 222.3927859507.

The spelling of 10999225 in words is "ten million, nine hundred ninety-nine thousand, two hundred twenty-five".