225305500 has 48 divisors (see below), whose sum is σ = 562371264. Its totient is φ = 77246400.

The previous prime is 225305497. The next prime is 225305503. The reversal of 225305500 is 5503522.

It is an interprime number because it is at equal distance from previous prime (225305497) and next prime (225305503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225305503) 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 15 ways as a sum of consecutive naturals, for example, 28687 + ... + 35686.

It is an arithmetic number, because the mean of its divisors is an integer number (11716068).

Almost surely, 2^225305500 is an apocalyptic number.

225305500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225305500 is an abundant number, since it is smaller than the sum of its proper divisors (337065764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225305500 is a wasteful number, since it uses less digits than its factorization.

225305500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64399 (or 64387 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 225305500 is about 15010.1798790021. The cubic root of 225305500 is about 608.4953510204.

The spelling of 225305500 in words is "two hundred twenty-five million, three hundred five thousand, five hundred".