225556253 has 4 divisors (see below), whose sum is σ = 242906748. Its totient is φ = 208205760.

The previous prime is 225556241. The next prime is 225556259. The reversal of 225556253 is 352655522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74684164 + 150872089 = 8642^2 + 12283^2 .

It is a cyclic number.

It is not a de Polignac number, because 225556253 - 2¹⁰ = 225555229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225556259) 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 in 3 ways as a sum of consecutive naturals, for example, 8675228 + ... + 8675253.

It is an arithmetic number, because the mean of its divisors is an integer number (60726687).

Almost surely, 2^225556253 is an apocalyptic number.

It is an amenable number.

225556253 is a deficient number, since it is larger than the sum of its proper divisors (17350495).

225556253 is a wasteful number, since it uses less digits than its factorization.

225556253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17350494.

The product of its digits is 90000, while the sum is 35.

The square root of 225556253 is about 15018.5303209069. The cubic root of 225556253 is about 608.7210082791.

The spelling of 225556253 in words is "two hundred twenty-five million, five hundred fifty-six thousand, two hundred fifty-three".