225937802729 has 2 divisors, whose sum is σ = 225937802730. Its totient is φ = 225937802728.

The previous prime is 225937802599. The next prime is 225937802731. The reversal of 225937802729 is 927208739522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125512192729 + 100425610000 = 354277^2 + 316900^2 .

It is a cyclic number.

It is not a de Polignac number, because 225937802729 - 2¹² = 225937798633 is a prime.

Together with 225937802731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225937802029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112968901364 + 112968901365.

It is an arithmetic number, because the mean of its divisors is an integer number (112968901365).

Almost surely, 2^225937802729 is an apocalyptic number.

It is an amenable number.

225937802729 is a deficient number, since it is larger than the sum of its proper divisors (1).

225937802729 is an equidigital number, since it uses as much as digits as its factorization.

225937802729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 225937802729 in words is "two hundred twenty-five billion, nine hundred thirty-seven million, eight hundred two thousand, seven hundred twenty-nine".