25445838 has 32 divisors (see below), whose sum is σ = 58786560. Its totient is φ = 7256960.

The previous prime is 25445813. The next prime is 25445851. The reversal of 25445838 is 83854452.

It is a junction number, because it is equal to n+sod(n) for n = 25445796 and 25445805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10218 + ... + 12461.

It is an arithmetic number, because the mean of its divisors is an integer number (1837080).

Almost surely, 2^25445838 is an apocalyptic number.

25445838 is an abundant number, since it is smaller than the sum of its proper divisors (33340722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25445838 is a wasteful number, since it uses less digits than its factorization.

25445838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22712.

The product of its digits is 153600, while the sum is 39.

The square root of 25445838 is about 5044.3867813640. The cubic root of 25445838 is about 294.1297266364.

The spelling of 25445838 in words is "twenty-five million, four hundred forty-five thousand, eight hundred thirty-eight".