225891016875 has 120 divisors (see below), whose sum is σ = 432776092320. Its totient is φ = 113109120000.

The previous prime is 225891016873. The next prime is 225891016889. The reversal of 225891016875 is 578610198522.

It is not a de Polignac number, because 225891016875 - 2¹ = 225891016873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225891016873) by changing a digit.

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 119 ways as a sum of consecutive naturals, for example, 41976685 + ... + 41982065.

It is an arithmetic number, because the mean of its divisors is an integer number (3606467436).

Almost surely, 2^225891016875 is an apocalyptic number.

225891016875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

225891016875 is a deficient number, since it is larger than the sum of its proper divisors (206885075445).

225891016875 is a wasteful number, since it uses less digits than its factorization.

225891016875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5863 (or 5845 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 225891016875 in words is "two hundred twenty-five billion, eight hundred ninety-one million, sixteen thousand, eight hundred seventy-five".