25673256 has 144 divisors (see below), whose sum is σ = 85363200. Its totient is φ = 6931008.

The previous prime is 25673251. The next prime is 25673269. The reversal of 25673256 is 65237652.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 25673256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25673251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 66841 + ... + 67223.

It is an arithmetic number, because the mean of its divisors is an integer number (592800).

Almost surely, 2^25673256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25673256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42681600).

25673256 is an abundant number, since it is smaller than the sum of its proper divisors (59689944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25673256 is a wasteful number, since it uses less digits than its factorization.

25673256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 414 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 25673256 is about 5066.8783289122. The cubic root of 25673256 is about 295.0033744706.

The spelling of 25673256 in words is "twenty-five million, six hundred seventy-three thousand, two hundred fifty-six".