225884745522 has 78 divisors (see below), whose sum is σ = 509345223789. Its totient is φ = 75131585640.

The previous prime is 225884745521. The next prime is 225884745613. The reversal of 225884745522 is 225547488522.

225884745522 is a `hidden beast` number, since 2 + 2 + 5 + 8 + 84 + 7 + 4 + 552 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 218359009521 + 7525736001 = 467289^2 + 86751^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=336069.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (225884745521) by changing a digit.

It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 489988372 + ... + 489988832.

Almost surely, 2^225884745522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225884745522

225884745522 is an abundant number, since it is smaller than the sum of its proper divisors (283460478267).

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

225884745522 is an frugal number, since it uses more digits than its factorization.

225884745522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960 (or 466 counting only the distinct ones).

The product of its digits is 14336000, while the sum is 54.

The spelling of 225884745522 in words is "two hundred twenty-five billion, eight hundred eighty-four million, seven hundred forty-five thousand, five hundred twenty-two".