225522029 has 2 divisors, whose sum is σ = 225522030. Its totient is φ = 225522028.

The previous prime is 225521987. The next prime is 225522053. The reversal of 225522029 is 920225522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187416100 + 38105929 = 13690^2 + 6173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225522029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225521992 and 225522010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225528029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112761014 + 112761015.

It is an arithmetic number, because the mean of its divisors is an integer number (112761015).

Almost surely, 2^225522029 is an apocalyptic number.

It is an amenable number.

225522029 is a deficient number, since it is larger than the sum of its proper divisors (1).

225522029 is an equidigital number, since it uses as much as digits as its factorization.

225522029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 225522029 is about 15017.3908852370. The cubic root of 225522029 is about 608.6902193277.

The spelling of 225522029 in words is "two hundred twenty-five million, five hundred twenty-two thousand, twenty-nine".