225529068381 has 4 divisors (see below), whose sum is σ = 300705424512. Its totient is φ = 150352712252.

The previous prime is 225529068343. The next prime is 225529068403. The reversal of 225529068381 is 183860925522.

225529068381 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.

It is a cyclic number.

It is not a de Polignac number, because 225529068381 - 2¹⁹ = 225528544093 is a prime.

It is a super-2 number, since 2×225529068381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225529068181) 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, 37588178061 + ... + 37588178066.

It is an arithmetic number, because the mean of its divisors is an integer number (75176356128).

Almost surely, 2^225529068381 is an apocalyptic number.

It is an amenable number.

225529068381 is a deficient number, since it is larger than the sum of its proper divisors (75176356131).

225529068381 is an equidigital number, since it uses as much as digits as its factorization.

225529068381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75176356130.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 225529068381 in words is "two hundred twenty-five billion, five hundred twenty-nine million, sixty-eight thousand, three hundred eighty-one".