225333421452 has 120 divisors (see below), whose sum is σ = 601932570624. Its totient is φ = 73472328288.

The previous prime is 225333421451. The next prime is 225333421471. The reversal of 225333421452 is 254124333522.

225333421452 is a `hidden beast` number, since 2 + 253 + 3 + 342 + 14 + 52 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (225333421451) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40914883 + ... + 40920389.

Almost surely, 2^225333421452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225333421452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300966285312).

225333421452 is an abundant number, since it is smaller than the sum of its proper divisors (376599149172).

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

225333421452 is a wasteful number, since it uses less digits than its factorization.

225333421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8257 (or 8246 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

Adding to 225333421452 its reverse (254124333522), we get a palindrome (479457754974).

The spelling of 225333421452 in words is "two hundred twenty-five billion, three hundred thirty-three million, four hundred twenty-one thousand, four hundred fifty-two".