225689546 has 8 divisors (see below), whose sum is σ = 343302624. Its totient is φ = 111255340.

The previous prime is 225689531. The next prime is 225689549. The reversal of 225689546 is 645986522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×225689546² = 101871542347372232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225689546.

It is not an unprimeable number, because it can be changed into a prime (225689549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794540 + ... + 794823.

It is an arithmetic number, because the mean of its divisors is an integer number (42912828).

Almost surely, 2^225689546 is an apocalyptic number.

225689546 is a deficient number, since it is larger than the sum of its proper divisors (117613078).

225689546 is a wasteful number, since it uses less digits than its factorization.

225689546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589436.

The product of its digits is 1036800, while the sum is 47.

The square root of 225689546 is about 15022.9672834630. The cubic root of 225689546 is about 608.8408930389.

The spelling of 225689546 in words is "two hundred twenty-five million, six hundred eighty-nine thousand, five hundred forty-six".