25231627266 has 16 divisors (see below), whose sum is σ = 50659612704. Its totient is φ = 8377816064.

The previous prime is 25231627243. The next prime is 25231627297. The reversal of 25231627266 is 66272613252.

It is a happy number.

It is a Curzon 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, 8179920 + ... + 8183003.

It is an arithmetic number, because the mean of its divisors is an integer number (3166225794).

Almost surely, 2^25231627266 is an apocalyptic number.

25231627266 is an abundant number, since it is smaller than the sum of its proper divisors (25427985438).

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

25231627266 is a wasteful number, since it uses less digits than its factorization.

25231627266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16363185.

The product of its digits is 362880, while the sum is 42.

The spelling of 25231627266 in words is "twenty-five billion, two hundred thirty-one million, six hundred twenty-seven thousand, two hundred sixty-six".