25873897 has 4 divisors (see below), whose sum is σ = 29570176. Its totient is φ = 22177620.

The previous prime is 25873889. The next prime is 25873907. The reversal of 25873897 is 79837852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25873897 - 2³ = 25873889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25873897.

It is not an unprimeable number, because it can be changed into a prime (25873697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848129 + ... + 1848142.

It is an arithmetic number, because the mean of its divisors is an integer number (7392544).

Almost surely, 2^25873897 is an apocalyptic number.

It is an amenable number.

25873897 is a deficient number, since it is larger than the sum of its proper divisors (3696279).

25873897 is an equidigital number, since it uses as much as digits as its factorization.

25873897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696278.

The product of its digits is 846720, while the sum is 49.

The square root of 25873897 is about 5086.6390672034. The cubic root of 25873897 is about 295.7698821708.

The spelling of 25873897 in words is "twenty-five million, eight hundred seventy-three thousand, eight hundred ninety-seven".