9000025 has 12 divisors (see below), whose sum is σ = 11236012. Its totient is φ = 7151040.

The previous prime is 9000011. The next prime is 9000041. The reversal of 9000025 is 5200009.

It can be written as a sum of positive squares in 6 ways, for example, as 1098304 + 7901721 = 1048^2 + 2811^2 .

It is not a de Polignac number, because 9000025 - 2⁵ = 8999993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8999972 and 9000008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2779 + ... + 5071.

Almost surely, 2^9000025 is an apocalyptic number.

It is an amenable number.

9000025 is a deficient number, since it is larger than the sum of its proper divisors (2235987).

9000025 is a wasteful number, since it uses less digits than its factorization.

9000025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 2455 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 9000025 is about 3000.0041666638. The cubic root of 9000025 is about 208.0085749054.

Subtracting from 9000025 its sum of digits (16), we obtain a palindrome (9000009).

It can be divided in two parts, 90000 and 25, that multiplied together give a square (2250000 = 1500²).

The spelling of 9000025 in words is "nine million, twenty-five", and thus it is an aban number and an uban number.