225238611488 has 162 divisors, whose sum is σ = 506729602197. Its totient is φ = 98474942720.

The previous prime is 225238611487. The next prime is 225238611503. The reversal of 225238611488 is 884116832522.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 225104700304 + 133911184 = 474452^2 + 11572^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=335588.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225238611487) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 856420445 + ... + 856420707.

Almost surely, 2^225238611488 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 225238611488

225238611488 is an abundant number, since it is smaller than the sum of its proper divisors (281490990709).

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

225238611488 is an equidigital number, since it uses as much as digits as its factorization.

225238611488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 305 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 50.

Multiplying 225238611488 by its sum of digits (50), we get a square (11261930574400 = 3355880²).

The spelling of 225238611488 in words is "two hundred twenty-five billion, two hundred thirty-eight million, six hundred eleven thousand, four hundred eighty-eight".