225633646 has 16 divisors (see below), whose sum is σ = 386993376. Its totient is φ = 96651936.

The previous prime is 225633643. The next prime is 225633647. The reversal of 225633646 is 646336522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225633643) by changing a digit.

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, 52200 + ... + 56356.

It is an arithmetic number, because the mean of its divisors is an integer number (24187086).

Almost surely, 2^225633646 is an apocalyptic number.

225633646 is a deficient number, since it is larger than the sum of its proper divisors (161359730).

225633646 is a wasteful number, since it uses less digits than its factorization.

225633646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8043.

The product of its digits is 155520, while the sum is 37.

The square root of 225633646 is about 15021.1066835969. The cubic root of 225633646 is about 608.7906218931.

The spelling of 225633646 in words is "two hundred twenty-five million, six hundred thirty-three thousand, six hundred forty-six".