225685456 has 20 divisors (see below), whose sum is σ = 451371904. Its totient is φ = 109202400.

The previous prime is 225685441. The next prime is 225685519. The reversal of 225685456 is 654586522.

225685456 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 227010 + ... + 228001.

Almost surely, 2^225685456 is an apocalyptic number.

It is an amenable number.

225685456 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225685456 is a wasteful number, since it uses less digits than its factorization.

225685456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455050 (or 455044 counting only the distinct ones).

The product of its digits is 576000, while the sum is 43.

The square root of 225685456 is about 15022.8311579409. The cubic root of 225685456 is about 608.8372151632.

The spelling of 225685456 in words is "two hundred twenty-five million, six hundred eighty-five thousand, four hundred fifty-six".