25958985 has 32 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 12703488.

The previous prime is 25958963. The next prime is 25959067. The reversal of 25958985 is 58985952.

It is not a de Polignac number, because 25958985 - 2¹² = 25954889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46327 + ... + 46883.

It is an arithmetic number, because the mean of its divisors is an integer number (1406160).

Almost surely, 2^25958985 is an apocalyptic number.

It is an amenable number.

25958985 is a deficient number, since it is larger than the sum of its proper divisors (19038135).

25958985 is a wasteful number, since it uses less digits than its factorization.

25958985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 1296000, while the sum is 51.

The square root of 25958985 is about 5094.9960745814. The cubic root of 25958985 is about 296.0937469374.

The spelling of 25958985 in words is "twenty-five million, nine hundred fifty-eight thousand, nine hundred eighty-five".