225520064 has 56 divisors (see below), whose sum is σ = 557954688. Its totient is φ = 87863040.

The previous prime is 225520039. The next prime is 225520073. The reversal of 225520064 is 460025522.

225520064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17954 + ... + 27809.

Almost surely, 2^225520064 is an apocalyptic number.

It is an amenable number.

225520064 is an abundant number, since it is smaller than the sum of its proper divisors (332434624).

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

225520064 is a wasteful number, since it uses less digits than its factorization.

225520064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45793 (or 45783 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 225520064 is about 15017.3254609468. The cubic root of 225520064 is about 608.6884514593.

Adding to 225520064 its reverse (460025522), we get a palindrome (685545586).

The spelling of 225520064 in words is "two hundred twenty-five million, five hundred twenty thousand, sixty-four".