225993750 has 96 divisors (see below), whose sum is σ = 599024160. Its totient is φ = 56640000.

The previous prime is 225993727. The next prime is 225993769. The reversal of 225993750 is 57399522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318396 + ... + 319104.

It is an arithmetic number, because the mean of its divisors is an integer number (6239835).

Almost surely, 2^225993750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225993750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299512080).

225993750 is an abundant number, since it is smaller than the sum of its proper divisors (373030410).

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

225993750 is an equidigital number, since it uses as much as digits as its factorization.

225993750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 225993750 is about 15033.0885050278. The cubic root of 225993750 is about 609.1143197966.

The spelling of 225993750 in words is "two hundred twenty-five million, nine hundred ninety-three thousand, seven hundred fifty".