225521250450 has 96 divisors (see below), whose sum is σ = 561018306816. Its totient is φ = 59953781760.

The previous prime is 225521250433. The next prime is 225521250463. The reversal of 225521250450 is 54052125522.

It is a happy number.

225521250450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88681879 + ... + 88684421.

It is an arithmetic number, because the mean of its divisors is an integer number (5843940696).

Almost surely, 2^225521250450 is an apocalyptic number.

225521250450 is an abundant number, since it is smaller than the sum of its proper divisors (335497056366).

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

225521250450 is a wasteful number, since it uses less digits than its factorization.

225521250450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148 (or 4143 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 225521250450 its reverse (54052125522), we get a palindrome (279573375972).

The spelling of 225521250450 in words is "two hundred twenty-five billion, five hundred twenty-one million, two hundred fifty thousand, four hundred fifty".