225001878431 has 4 divisors (see below), whose sum is σ = 245456594664. Its totient is φ = 204547162200.

The previous prime is 225001878391. The next prime is 225001878443. The reversal of 225001878431 is 134878100522.

225001878431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225001878431 - 2¹⁰ = 225001877407 is a prime.

It is a super-2 number, since 2×225001878431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225001878631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10227358100 + ... + 10227358121.

It is an arithmetic number, because the mean of its divisors is an integer number (61364148666).

Almost surely, 2^225001878431 is an apocalyptic number.

225001878431 is a deficient number, since it is larger than the sum of its proper divisors (20454716233).

225001878431 is a wasteful number, since it uses less digits than its factorization.

225001878431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20454716232.

The product of its (nonzero) digits is 107520, while the sum is 41.

Adding to 225001878431 its reverse (134878100522), we get a palindrome (359879978953).

The spelling of 225001878431 in words is "two hundred twenty-five billion, one million, eight hundred seventy-eight thousand, four hundred thirty-one".