225318375 has 64 divisors (see below), whose sum is σ = 421349760. Its totient is φ = 118800000.

The previous prime is 225318319. The next prime is 225318377. The reversal of 225318375 is 573813522.

It is a happy number.

It is not a de Polignac number, because 225318375 - 2⁶ = 225318311 is a prime.

It is a super-2 number, since 2×225318375² = 101536740225281250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225318377) 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 63 ways as a sum of consecutive naturals, for example, 340545 + ... + 341205.

It is an arithmetic number, because the mean of its divisors is an integer number (6583590).

Almost surely, 2^225318375 is an apocalyptic number.

225318375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

225318375 is a deficient number, since it is larger than the sum of its proper divisors (196031385).

225318375 is a wasteful number, since it uses less digits than its factorization.

225318375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 770 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 225318375 is about 15010.6087484819. The cubic root of 225318375 is about 608.5069415473.

The spelling of 225318375 in words is "two hundred twenty-five million, three hundred eighteen thousand, three hundred seventy-five".