25850881 has 8 divisors (see below), whose sum is σ = 30147200. Its totient is φ = 22157604.

The previous prime is 25850843. The next prime is 25850899. The reversal of 25850881 is 18805852.

It is not a de Polignac number, because 25850881 - 2¹³ = 25842689 is a prime.

It is a super-2 number, since 2×25850881² = 1336536096952322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25850881.

It is not an unprimeable number, because it can be changed into a prime (25850801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37341 + ... + 38026.

It is an arithmetic number, because the mean of its divisors is an integer number (3768400).

Almost surely, 2^25850881 is an apocalyptic number.

It is an amenable number.

25850881 is a deficient number, since it is larger than the sum of its proper divisors (4296319).

25850881 is an frugal number, since it uses more digits than its factorization.

25850881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75388 (or 75374 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 25850881 is about 5084.3761662568. The cubic root of 25850881 is about 295.6821559306.

The spelling of 25850881 in words is "twenty-five million, eight hundred fifty thousand, eight hundred eighty-one".