25806231452 has 24 divisors (see below), whose sum is σ = 47551607040. Its totient is φ = 12220452720.

The previous prime is 25806231419. The next prime is 25806231467. The reversal of 25806231452 is 25413260852.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223853 + ... + 318939.

It is an arithmetic number, because the mean of its divisors is an integer number (1981316960).

Almost surely, 2^25806231452 is an apocalyptic number.

It is an amenable number.

25806231452 is a deficient number, since it is larger than the sum of its proper divisors (21745375588).

25806231452 is a wasteful number, since it uses less digits than its factorization.

25806231452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98681 (or 98679 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 25806231452 in words is "twenty-five billion, eight hundred six million, two hundred thirty-one thousand, four hundred fifty-two".