225019578 has 16 divisors (see below), whose sum is σ = 514330560. Its totient is φ = 64291296.

The previous prime is 225019577. The next prime is 225019589. The reversal of 225019578 is 875910522.

It is not an unprimeable number, because it can be changed into a prime (225019573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2678763 + ... + 2678846.

It is an arithmetic number, because the mean of its divisors is an integer number (32145660).

Almost surely, 2^225019578 is an apocalyptic number.

225019578 is an abundant number, since it is smaller than the sum of its proper divisors (289310982).

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

225019578 is a wasteful number, since it uses less digits than its factorization.

225019578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357621.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 225019578 is about 15000.6525858044. The cubic root of 225019578 is about 608.2378401347.

The spelling of 225019578 in words is "two hundred twenty-five million, nineteen thousand, five hundred seventy-eight".