25864895 has 24 divisors (see below), whose sum is σ = 36358704. Its totient is φ = 17611776.

The previous prime is 25864859. The next prime is 25864921. The reversal of 25864895 is 59846852.

It is not a de Polignac number, because 25864895 - 2⁶ = 25864831 is a prime.

It is a super-2 number, since 2×25864895² = 1337985586722050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47012 + ... + 47558.

It is an arithmetic number, because the mean of its divisors is an integer number (1514946).

Almost surely, 2^25864895 is an apocalyptic number.

25864895 is a deficient number, since it is larger than the sum of its proper divisors (10493809).

25864895 is a wasteful number, since it uses less digits than its factorization.

25864895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 752 counting only the distinct ones).

The product of its digits is 691200, while the sum is 47.

The square root of 25864895 is about 5085.7541230382. The cubic root of 25864895 is about 295.7355769491.

The spelling of 25864895 in words is "twenty-five million, eight hundred sixty-four thousand, eight hundred ninety-five".