225232504381 has 2 divisors, whose sum is σ = 225232504382. Its totient is φ = 225232504380.

The previous prime is 225232504333. The next prime is 225232504391. The reversal of 225232504381 is 183405232522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194539216356 + 30693288025 = 441066^2 + 175195^2 .

It is a cyclic number.

It is not a de Polignac number, because 225232504381 - 2⁷ = 225232504253 is a prime.

It is a super-2 number, since 2×225232504381² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225232504381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225232504391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112616252190 + 112616252191.

It is an arithmetic number, because the mean of its divisors is an integer number (112616252191).

Almost surely, 2^225232504381 is an apocalyptic number.

It is an amenable number.

225232504381 is a deficient number, since it is larger than the sum of its proper divisors (1).

225232504381 is an equidigital number, since it uses as much as digits as its factorization.

225232504381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 225232504381 in words is "two hundred twenty-five billion, two hundred thirty-two million, five hundred four thousand, three hundred eighty-one".