25889895 has 64 divisors (see below), whose sum is σ = 50544000. Its totient is φ = 12515328.

The previous prime is 25889879. The next prime is 25889909. The reversal of 25889895 is 59898852.

It is not a de Polignac number, because 25889895 - 2⁴ = 25889879 is a prime.

It is a super-2 number, since 2×25889895² = 1340573326222050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66361 + ... + 66749.

It is an arithmetic number, because the mean of its divisors is an integer number (789750).

Almost surely, 2^25889895 is an apocalyptic number.

25889895 is a deficient number, since it is larger than the sum of its proper divisors (24654105).

25889895 is a wasteful number, since it uses less digits than its factorization.

25889895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 443 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 54.

The square root of 25889895 is about 5088.2113753263. The cubic root of 25889895 is about 295.8308284299.

The spelling of 25889895 in words is "twenty-five million, eight hundred eighty-nine thousand, eight hundred ninety-five".