225597029 has 12 divisors (see below), whose sum is σ = 269524044. Its totient is φ = 188141184.

The previous prime is 225597023. The next prime is 225597059. The reversal of 225597029 is 920795522.

It can be written as a sum of positive squares in 2 ways, for example, as 213832129 + 11764900 = 14623^2 + 3430^2 .

It is not a de Polignac number, because 225597029 - 2⁸ = 225596773 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225597023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60404 + ... + 64029.

It is an arithmetic number, because the mean of its divisors is an integer number (22460337).

Almost surely, 2^225597029 is an apocalyptic number.

It is an amenable number.

225597029 is a deficient number, since it is larger than the sum of its proper divisors (43927015).

225597029 is a wasteful number, since it uses less digits than its factorization.

225597029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124484 (or 124477 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 225597029 is about 15019.8877825369. The cubic root of 225597029 is about 608.7576875434.

The spelling of 225597029 in words is "two hundred twenty-five million, five hundred ninety-seven thousand, twenty-nine".