225335638 has 16 divisors (see below), whose sum is σ = 371782800. Its totient is φ = 102424080.

The previous prime is 225335633. The next prime is 225335657. The reversal of 225335638 is 836533522.

It is a super-2 number, since 2×225335638² = 101552299505734088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225335597 and 225335606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225335633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39663 + ... + 44986.

It is an arithmetic number, because the mean of its divisors is an integer number (23236425).

Almost surely, 2^225335638 is an apocalyptic number.

225335638 is a deficient number, since it is larger than the sum of its proper divisors (146447162).

225335638 is an equidigital number, since it uses as much as digits as its factorization.

225335638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84684 (or 84662 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 225335638 is about 15011.1837641140. The cubic root of 225335638 is about 608.5224816130.

The spelling of 225335638 in words is "two hundred twenty-five million, three hundred thirty-five thousand, six hundred thirty-eight".