225050724 has 60 divisors (see below), whose sum is σ = 604259964. Its totient is φ = 72985536.

The previous prime is 225050723. The next prime is 225050729. The reversal of 225050724 is 427050522.

It can be written as a sum of positive squares in 2 ways, for example, as 217857600 + 7193124 = 14760^2 + 2682^2 .

It is a super-3 number, since 3×225050724³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (225050723) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2602 + ... + 21374.

Almost surely, 2^225050724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225050724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302129982).

225050724 is an abundant number, since it is smaller than the sum of its proper divisors (379209240).

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

225050724 is a wasteful number, since it uses less digits than its factorization.

225050724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18826 (or 18815 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 225050724 is about 15001.6907047173. The cubic root of 225050724 is about 608.2659018437.

The spelling of 225050724 in words is "two hundred twenty-five million, fifty thousand, seven hundred twenty-four".