225244531013 has 4 divisors (see below), whose sum is σ = 225522268608. Its totient is φ = 224966793420.

The previous prime is 225244530989. The next prime is 225244531079. The reversal of 225244531013 is 310135442522.

225244531013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310135442522 = 2 ⋅155067721261.

It is a cyclic number.

It is not a de Polignac number, because 225244531013 - 2⁶ = 225244530949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225244530013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138867581 + ... + 138869202.

It is an arithmetic number, because the mean of its divisors is an integer number (56380567152).

Almost surely, 2^225244531013 is an apocalyptic number.

It is an amenable number.

225244531013 is a deficient number, since it is larger than the sum of its proper divisors (277737595).

225244531013 is an equidigital number, since it uses as much as digits as its factorization.

225244531013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277737594.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 225244531013 its reverse (310135442522), we get a palindrome (535379973535).

The spelling of 225244531013 in words is "two hundred twenty-five billion, two hundred forty-four million, five hundred thirty-one thousand, thirteen".