225756522331 has 4 divisors (see below), whose sum is σ = 225781185472. Its totient is φ = 225731859192.

The previous prime is 225756522319. The next prime is 225756522419. The reversal of 225756522331 is 133225657522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133225657522 = 2 ⋅66612828761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225756522331 is a prime.

It is a super-2 number, since 2×225756522331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225756522301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12317835 + ... + 12336148.

It is an arithmetic number, because the mean of its divisors is an integer number (56445296368).

Almost surely, 2^225756522331 is an apocalyptic number.

225756522331 is a deficient number, since it is larger than the sum of its proper divisors (24663141).

225756522331 is an equidigital number, since it uses as much as digits as its factorization.

225756522331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24663140.

The product of its digits is 756000, while the sum is 43.

The spelling of 225756522331 in words is "two hundred twenty-five billion, seven hundred fifty-six million, five hundred twenty-two thousand, three hundred thirty-one".