225532022440 has 32 divisors (see below), whose sum is σ = 508901085000. Its totient is φ = 89954313984.

The previous prime is 225532022431. The next prime is 225532022483. The reversal of 225532022440 is 44220235522.

It can be written as a sum of positive squares in 4 ways, for example, as 220774057956 + 4757964484 = 469866^2 + 68978^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8063835 + ... + 8091754.

Almost surely, 2^225532022440 is an apocalyptic number.

225532022440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225532022440 is an abundant number, since it is smaller than the sum of its proper divisors (283369062560).

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

225532022440 is a wasteful number, since it uses less digits than its factorization.

225532022440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16155949 (or 16155945 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 225532022440 its reverse (44220235522), we get a palindrome (269752257962).

The spelling of 225532022440 in words is "two hundred twenty-five billion, five hundred thirty-two million, twenty-two thousand, four hundred forty".