25867395 has 24 divisors (see below), whose sum is σ = 45242496. Its totient is φ = 13671168.

The previous prime is 25867367. The next prime is 25867397. The reversal of 25867395 is 59376852.

It is a happy number.

25867395 is a `hidden beast` number, since 258 + 6 + 7 + 395 = 666.

It is a Cunningham number, because it is equal to 5086²-1.

It is not a de Polignac number, because 25867395 - 2⁵ = 25867363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25867395.

It is not an unprimeable number, because it can be changed into a prime (25867397) 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 23 ways as a sum of consecutive naturals, for example, 2542 + ... + 7628.

It is an arithmetic number, because the mean of its divisors is an integer number (1885104).

Almost surely, 2^25867395 is an apocalyptic number.

25867395 is a deficient number, since it is larger than the sum of its proper divisors (19375101).

25867395 is a wasteful number, since it uses less digits than its factorization.

25867395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211 (or 5208 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 25867395 is about 5085.9999016909. Note that the first 4 decimals coincide. The cubic root of 25867395 is about 295.7451048585.

It can be divided in two parts, 25867 and 395, that added together give a palindrome (26262).

The spelling of 25867395 in words is "twenty-five million, eight hundred sixty-seven thousand, three hundred ninety-five".