25856422 has 16 divisors (see below), whose sum is σ = 41212800. Its totient is φ = 12124288.

The previous prime is 25856419. The next prime is 25856423. The reversal of 25856422 is 22465852.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25856423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9579 + ... + 11977.

It is an arithmetic number, because the mean of its divisors is an integer number (2575800).

Almost surely, 2^25856422 is an apocalyptic number.

25856422 is a deficient number, since it is larger than the sum of its proper divisors (15356378).

25856422 is a wasteful number, since it uses less digits than its factorization.

25856422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735.

The product of its digits is 38400, while the sum is 34.

The square root of 25856422 is about 5084.9210416682. The cubic root of 25856422 is about 295.7032803916.

The spelling of 25856422 in words is "twenty-five million, eight hundred fifty-six thousand, four hundred twenty-two".