25898951 has 4 divisors (see below), whose sum is σ = 27891192. Its totient is φ = 23906712.

The previous prime is 25898947. The next prime is 25898959. The reversal of 25898951 is 15989852.

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

It is a cyclic number.

It is not a de Polignac number, because 25898951 - 2² = 25898947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25898896 and 25898905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25898959) 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, 996101 + ... + 996126.

It is an arithmetic number, because the mean of its divisors is an integer number (6972798).

Almost surely, 2^25898951 is an apocalyptic number.

25898951 is a deficient number, since it is larger than the sum of its proper divisors (1992241).

25898951 is a wasteful number, since it uses less digits than its factorization.

25898951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992240.

The product of its digits is 259200, while the sum is 47.

The square root of 25898951 is about 5089.1011976576. The cubic root of 25898951 is about 295.8653171970.

Subtracting from 25898951 its reverse (15989852), we obtain a palindrome (9909099).

The spelling of 25898951 in words is "twenty-five million, eight hundred ninety-eight thousand, nine hundred fifty-one".