25009897 has 8 divisors (see below), whose sum is σ = 27333792. Its totient is φ = 22694400.

The previous prime is 25009883. The next prime is 25009903. The reversal of 25009897 is 79890052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25009897 - 2¹¹ = 25007849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25009807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5278 + ... + 8824.

It is an arithmetic number, because the mean of its divisors is an integer number (3416724).

Almost surely, 2^25009897 is an apocalyptic number.

It is an amenable number.

25009897 is a deficient number, since it is larger than the sum of its proper divisors (2323895).

25009897 is a wasteful number, since it uses less digits than its factorization.

25009897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 25009897 is about 5000.9896020688. The cubic root of 25009897 is about 292.4403540688.

The spelling of 25009897 in words is "twenty-five million, nine thousand, eight hundred ninety-seven".