225078732 has 36 divisors (see below), whose sum is σ = 569610496. Its totient is φ = 74939040.

The previous prime is 225078719. The next prime is 225078743. The reversal of 225078732 is 237870522.

It is a happy number.

225078732 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 (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32757 + ... + 39027.

Almost surely, 2^225078732 is an apocalyptic number.

It is an amenable number.

225078732 is an abundant number, since it is smaller than the sum of its proper divisors (344531764).

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

225078732 is a wasteful number, since it uses less digits than its factorization.

225078732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278 (or 7273 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 225078732 is about 15002.6241704576. The cubic root of 225078732 is about 608.2911340883.

The spelling of 225078732 in words is "two hundred twenty-five million, seventy-eight thousand, seven hundred thirty-two".