225105503 has 4 divisors (see below), whose sum is σ = 257263440. Its totient is φ = 192947568.

The previous prime is 225105499. The next prime is 225105527. The reversal of 225105503 is 305501522.

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

It is a cyclic number.

It is not a de Polignac number, because 225105503 - 2² = 225105499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225105563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16078958 + ... + 16078971.

It is an arithmetic number, because the mean of its divisors is an integer number (64315860).

Almost surely, 2^225105503 is an apocalyptic number.

225105503 is a deficient number, since it is larger than the sum of its proper divisors (32157937).

225105503 is an equidigital number, since it uses as much as digits as its factorization.

225105503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32157936.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 225105503 is about 15003.5163545084. The cubic root of 225105503 is about 608.3152499702.

The spelling of 225105503 in words is "two hundred twenty-five million, one hundred five thousand, five hundred three".