225521037433 has 2 divisors, whose sum is σ = 225521037434. Its totient is φ = 225521037432.

The previous prime is 225521037397. The next prime is 225521037451. The reversal of 225521037433 is 334730125522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134309789289 + 91211248144 = 366483^2 + 302012^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225521037433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225521037392 and 225521037401.

It is not a weakly prime, because it can be changed into another prime (225521037493) 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 as a sum of consecutive naturals, namely, 112760518716 + 112760518717.

It is an arithmetic number, because the mean of its divisors is an integer number (112760518717).

Almost surely, 2^225521037433 is an apocalyptic number.

It is an amenable number.

225521037433 is a deficient number, since it is larger than the sum of its proper divisors (1).

225521037433 is an equidigital number, since it uses as much as digits as its factorization.

225521037433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 37.

The spelling of 225521037433 in words is "two hundred twenty-five billion, five hundred twenty-one million, thirty-seven thousand, four hundred thirty-three".