225009887628 has 24 divisors (see below), whose sum is σ = 525030941232. Its totient is φ = 75002171584.

The previous prime is 225009887623. The next prime is 225009887633. The reversal of 225009887628 is 826788900522.

It is an interprime number because it is at equal distance from previous prime (225009887623) and next prime (225009887633).

It is not an unprimeable number, because it can be changed into a prime (225009887623) 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 7 ways as a sum of consecutive naturals, for example, 1220926 + ... + 1393082.

It is an arithmetic number, because the mean of its divisors is an integer number (21876289218).

Almost surely, 2^225009887628 is an apocalyptic number.

It is an amenable number.

225009887628 is an abundant number, since it is smaller than the sum of its proper divisors (300021053604).

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

225009887628 is a wasteful number, since it uses less digits than its factorization.

225009887628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281081 (or 281079 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 225009887628 in words is "two hundred twenty-five billion, nine million, eight hundred eighty-seven thousand, six hundred twenty-eight".