225017650 has 72 divisors (see below), whose sum is σ = 495601092. Its totient is φ = 75504000.

The previous prime is 225017647. The next prime is 225017651. The reversal of 225017650 is 56710522.

It can be written as a sum of positive squares in 6 ways, for example, as 47568609 + 177449041 = 6897^2 + 13321^2 .

It is not an unprimeable number, because it can be changed into a prime (225017651) 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 35 ways as a sum of consecutive naturals, for example, 77220 + ... + 80080.

Almost surely, 2^225017650 is an apocalyptic number.

225017650 is an abundant number, since it is smaller than the sum of its proper divisors (270583442).

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

225017650 is a wasteful number, since it uses less digits than its factorization.

225017650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 225017650 is about 15000.5883217959. The cubic root of 225017650 is about 608.2361029734.

It can be divided in two parts, 2250 and 17650, that added together give a triangular number (19900 = T₁₉₉).

The spelling of 225017650 in words is "two hundred twenty-five million, seventeen thousand, six hundred fifty".