225102175 has 6 divisors (see below), whose sum is σ = 279126728. Its totient is φ = 180081720.

The previous prime is 225102167. The next prime is 225102179. The reversal of 225102175 is 571201522.

It is not a de Polignac number, because 225102175 - 2³ = 225102167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 9004087 = 225102175 / (2 + 2 + 5 + 1 + 0 + 2 + 1 + 7 + 5).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225102179) 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 5 ways as a sum of consecutive naturals, for example, 4502019 + ... + 4502068.

Almost surely, 2^225102175 is an apocalyptic number.

225102175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

225102175 is a deficient number, since it is larger than the sum of its proper divisors (54024553).

225102175 is an equidigital number, since it uses as much as digits as its factorization.

225102175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9004097 (or 9004092 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 225102175 is about 15003.4054467644. The cubic root of 225102175 is about 608.3122521416.

Adding to 225102175 its reverse (571201522), we get a palindrome (796303697).

It can be divided in two parts, 225 and 102175, that added together give a square (102400 = 320²).

The spelling of 225102175 in words is "two hundred twenty-five million, one hundred two thousand, one hundred seventy-five".