225205051 has 4 divisors (see below), whose sum is σ = 231291712. Its totient is φ = 219118392.

The previous prime is 225205021. The next prime is 225205093. The reversal of 225205051 is 150502522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150502522 = 2 ⋅75251261.

It is a cyclic number.

It is not a de Polignac number, because 225205051 - 2¹³ = 225196859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225205021) 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, 3043275 + ... + 3043348.

It is an arithmetic number, because the mean of its divisors is an integer number (57822928).

Almost surely, 2^225205051 is an apocalyptic number.

225205051 is a deficient number, since it is larger than the sum of its proper divisors (6086661).

225205051 is an equidigital number, since it uses as much as digits as its factorization.

225205051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086660.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 225205051 is about 15006.8334767865. The cubic root of 225205051 is about 608.4049081398.

Adding to 225205051 its reverse (150502522), we get a palindrome (375707573).

The spelling of 225205051 in words is "two hundred twenty-five million, two hundred five thousand, fifty-one".