225731576 has 64 divisors (see below), whose sum is σ = 519955200. Its totient is φ = 89667072.

The previous prime is 225731567. The next prime is 225731629. The reversal of 225731576 is 675137522.

225731576 is digitally balanced in base 3, 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62015 + ... + 65553.

It is an arithmetic number, because the mean of its divisors is an integer number (8124300).

Almost surely, 2^225731576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225731576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259977600).

225731576 is an abundant number, since it is smaller than the sum of its proper divisors (294223624).

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

225731576 is a wasteful number, since it uses less digits than its factorization.

225731576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636 (or 3632 counting only the distinct ones).

The product of its digits is 88200, while the sum is 38.

The square root of 225731576 is about 15024.3660764772. The cubic root of 225731576 is about 608.8786853585.

It can be divided in two parts, 2257 and 31576, that added together give a palindrome (33833).

The spelling of 225731576 in words is "two hundred twenty-five million, seven hundred thirty-one thousand, five hundred seventy-six".