225015029 has 2 divisors, whose sum is σ = 225015030. Its totient is φ = 225015028.

The previous prime is 225015023. The next prime is 225015059. The reversal of 225015029 is 920510522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136936804 + 88078225 = 11702^2 + 9385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225015029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225014989 and 225015007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225015023) 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, 112507514 + 112507515.

It is an arithmetic number, because the mean of its divisors is an integer number (112507515).

Almost surely, 2^225015029 is an apocalyptic number.

It is an amenable number.

225015029 is a deficient number, since it is larger than the sum of its proper divisors (1).

225015029 is an equidigital number, since it uses as much as digits as its factorization.

225015029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 225015029 is about 15000.5009583014. The cubic root of 225015029 is about 608.2337413912.

The spelling of 225015029 in words is "two hundred twenty-five million, fifteen thousand, twenty-nine".