25030009 has 3 divisors (see below), whose sum is σ = 25035013. Its totient is φ = 25025006.

The previous prime is 25029959. The next prime is 25030013. The reversal of 25030009 is 90003052.

The square root of 25030009 is 5003.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 25030009 - 2⁷ = 25029881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25030099) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2502 + ... + 7504.

Almost surely, 2^25030009 is an apocalyptic number.

25030009 is the 5003-rd square number.

25030009 is the 2502-nd centered octagonal number.

It is an amenable number.

25030009 is a deficient number, since it is larger than the sum of its proper divisors (5004).

25030009 is an frugal number, since it uses more digits than its factorization.

25030009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006 (or 5003 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The cubic root of 25030009 is about 292.5187228379.

The spelling of 25030009 in words is "twenty-five million, thirty thousand, nine".