25998445 has 16 divisors (see below), whose sum is σ = 34828992. Its totient is φ = 18466560.

The previous prime is 25998437. The next prime is 25998449. The reversal of 25998445 is 54489952.

It is not a de Polignac number, because 25998445 - 2³ = 25998437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25998395 and 25998404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25998449) 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 15 ways as a sum of consecutive naturals, for example, 3132 + ... + 7861.

It is an arithmetic number, because the mean of its divisors is an integer number (2176812).

Almost surely, 2^25998445 is an apocalyptic number.

It is an amenable number.

25998445 is a deficient number, since it is larger than the sum of its proper divisors (8830547).

25998445 is a wasteful number, since it uses less digits than its factorization.

25998445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11052.

The product of its digits is 518400, while the sum is 46.

The square root of 25998445 is about 5098.8670310178. The cubic root of 25998445 is about 296.2437007212.

The spelling of 25998445 in words is "twenty-five million, nine hundred ninety-eight thousand, four hundred forty-five".