225105523 has 8 divisors (see below), whose sum is σ = 228462080. Its totient is φ = 221761800.

The previous prime is 225105499. The next prime is 225105527. The reversal of 225105523 is 325501522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225105523 - 2²¹ = 223008371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225105527) 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 7 ways as a sum of consecutive naturals, for example, 35548 + ... + 41398.

It is an arithmetic number, because the mean of its divisors is an integer number (28557760).

Almost surely, 2^225105523 is an apocalyptic number.

225105523 is a deficient number, since it is larger than the sum of its proper divisors (3356557).

225105523 is an equidigital number, since it uses as much as digits as its factorization.

225105523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 225105523 is about 15003.5170210188. The cubic root of 225105523 is about 608.3152679859.

The spelling of 225105523 in words is "two hundred twenty-five million, one hundred five thousand, five hundred twenty-three".