225047988 has 36 divisors (see below), whose sum is σ = 620587968. Its totient is φ = 68196240.

The previous prime is 225047983. The next prime is 225047993. The reversal of 225047988 is 889740522.

It is an interprime number because it is at equal distance from previous prime (225047983) and next prime (225047993).

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 (225047983) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 283756 + ... + 284547.

Almost surely, 2^225047988 is an apocalyptic number.

It is an amenable number.

225047988 is an abundant number, since it is smaller than the sum of its proper divisors (395539980).

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

225047988 is a wasteful number, since it uses less digits than its factorization.

225047988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568324 (or 568319 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 225047988 is about 15001.5995147184. The cubic root of 225047988 is about 608.2634368850.

The spelling of 225047988 in words is "two hundred twenty-five million, forty-seven thousand, nine hundred eighty-eight".