25367865 has 16 divisors (see below), whose sum is σ = 41146368. Its totient is φ = 13343616.

The previous prime is 25367863. The next prime is 25367899. The reversal of 25367865 is 56876352.

It is not a de Polignac number, because 25367865 - 2¹ = 25367863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25367861) 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 15 ways as a sum of consecutive naturals, for example, 10489 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (2571648).

Almost surely, 2^25367865 is an apocalyptic number.

It is an amenable number.

25367865 is a deficient number, since it is larger than the sum of its proper divisors (15778503).

25367865 is a wasteful number, since it uses less digits than its factorization.

25367865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23248.

The product of its digits is 302400, while the sum is 42.

The square root of 25367865 is about 5036.6521619028. The cubic root of 25367865 is about 293.8289879634.

It can be divided in two parts, 2536 and 7865, that added together give a palindrome (10401).

The spelling of 25367865 in words is "twenty-five million, three hundred sixty-seven thousand, eight hundred sixty-five".