225724896 has 36 divisors (see below), whose sum is σ = 641905992. Its totient is φ = 75241536.

The previous prime is 225724871. The next prime is 225724897. The reversal of 225724896 is 698427522.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225724897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 391596 + ... + 392171.

It is an arithmetic number, because the mean of its divisors is an integer number (17830722).

Almost surely, 2^225724896 is an apocalyptic number.

It is an amenable number.

225724896 is an abundant number, since it is smaller than the sum of its proper divisors (416181096).

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

225724896 is a wasteful number, since it uses less digits than its factorization.

225724896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783783 (or 783772 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 225724896 is about 15024.1437692802. The cubic root of 225724896 is about 608.8726791840.

The spelling of 225724896 in words is "two hundred twenty-five million, seven hundred twenty-four thousand, eight hundred ninety-six".