225305684 has 6 divisors (see below), whose sum is σ = 394284954. Its totient is φ = 112652840.

The previous prime is 225305671. The next prime is 225305693. The reversal of 225305684 is 486503522.

It can be written as a sum of positive squares in only one way, i.e., 224160784 + 1144900 = 14972^2 + 1070^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28163207 + ... + 28163214.

It is an arithmetic number, because the mean of its divisors is an integer number (65714159).

Almost surely, 2^225305684 is an apocalyptic number.

It is an amenable number.

225305684 is a deficient number, since it is larger than the sum of its proper divisors (168979270).

225305684 is a wasteful number, since it uses less digits than its factorization.

225305684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56326425 (or 56326423 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 225305684 is about 15010.1860081746. The cubic root of 225305684 is about 608.4955166667.

The spelling of 225305684 in words is "two hundred twenty-five million, three hundred five thousand, six hundred eighty-four".