225684542 has 16 divisors (see below), whose sum is σ = 344319360. Its totient is φ = 110918808.

The previous prime is 225684539. The next prime is 225684551. The reversal of 225684542 is 245486522.

It is a junction number, because it is equal to n+sod(n) for n = 225684496 and 225684505.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 71759 + ... + 74837.

It is an arithmetic number, because the mean of its divisors is an integer number (21519960).

Almost surely, 2^225684542 is an apocalyptic number.

225684542 is a deficient number, since it is larger than the sum of its proper divisors (118634818).

225684542 is a wasteful number, since it uses less digits than its factorization.

225684542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695.

The product of its digits is 153600, while the sum is 38.

The square root of 225684542 is about 15022.8007375456. The cubic root of 225684542 is about 608.8363932553.

The spelling of 225684542 in words is "two hundred twenty-five million, six hundred eighty-four thousand, five hundred forty-two".