225756029 has 2 divisors, whose sum is σ = 225756030. Its totient is φ = 225756028.

The previous prime is 225756019. The next prime is 225756061. The reversal of 225756029 is 920657522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118156900 + 107599129 = 10870^2 + 10373^2 .

It is a cyclic number.

It is not a de Polignac number, because 225756029 - 2²⁴ = 208978813 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 225755983 and 225756001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225756019) 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, 112878014 + 112878015.

It is an arithmetic number, because the mean of its divisors is an integer number (112878015).

Almost surely, 2^225756029 is an apocalyptic number.

It is an amenable number.

225756029 is a deficient number, since it is larger than the sum of its proper divisors (1).

225756029 is an equidigital number, since it uses as much as digits as its factorization.

225756029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 225756029 is about 15025.1798325345. The cubic root of 225756029 is about 608.9006707230.

The spelling of 225756029 in words is "two hundred twenty-five million, seven hundred fifty-six thousand, twenty-nine".