25005097 has 4 divisors (see below), whose sum is σ = 26928580. Its totient is φ = 23081616.

The previous prime is 25005089. The next prime is 25005107. The reversal of 25005097 is 79050052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10784656 + 14220441 = 3284^2 + 3771^2 .

It is a cyclic number.

It is not a de Polignac number, because 25005097 - 2³ = 25005089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25005017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961722 + ... + 961747.

It is an arithmetic number, because the mean of its divisors is an integer number (6732145).

Almost surely, 2^25005097 is an apocalyptic number.

It is an amenable number.

25005097 is a deficient number, since it is larger than the sum of its proper divisors (1923483).

25005097 is a wasteful number, since it uses less digits than its factorization.

25005097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923482.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 25005097 is about 5000.5096740232. The cubic root of 25005097 is about 292.4216440955.

The spelling of 25005097 in words is "twenty-five million, five thousand, ninety-seven".