225432500321 has 16 divisors (see below), whose sum is σ = 273089237760. Its totient is φ = 181663534080.

The previous prime is 225432500281. The next prime is 225432500333. The reversal of 225432500321 is 123005234522.

It is not a de Polignac number, because 225432500321 - 2¹⁰ = 225432499297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225432500621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921320 + ... + 1140041.

It is an arithmetic number, because the mean of its divisors is an integer number (17068077360).

Almost surely, 2^225432500321 is an apocalyptic number.

It is an amenable number.

225432500321 is a deficient number, since it is larger than the sum of its proper divisors (47656737439).

225432500321 is a wasteful number, since it uses less digits than its factorization.

225432500321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062304.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 225432500321 its reverse (123005234522), we get a palindrome (348437734843).

The spelling of 225432500321 in words is "two hundred twenty-five billion, four hundred thirty-two million, five hundred thousand, three hundred twenty-one".