225733731420 has 48 divisors (see below), whose sum is σ = 649137007008. Its totient is φ = 58568751360.

The previous prime is 225733731397. The next prime is 225733731439. The reversal of 225733731420 is 24137337522.

225733731420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 50838711 + ... + 50843150.

It is an arithmetic number, because the mean of its divisors is an integer number (13523687646).

Almost surely, 2^225733731420 is an apocalyptic number.

225733731420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225733731420 is an abundant number, since it is smaller than the sum of its proper divisors (423403275588).

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

225733731420 is a wasteful number, since it uses less digits than its factorization.

225733731420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101681910 (or 101681908 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 39.

The spelling of 225733731420 in words is "two hundred twenty-five billion, seven hundred thirty-three million, seven hundred thirty-one thousand, four hundred twenty".