225703650420 has 120 divisors (see below), whose sum is σ = 727177139304. Its totient is φ = 58560931584.

The previous prime is 225703650401. The next prime is 225703650421. The reversal of 225703650420 is 24056307522.

225703650420 is a `hidden beast` number, since 2 + 2 + 570 + 3 + 65 + 0 + 4 + 20 = 666.

225703650420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 54933046884 + 170770603536 = 234378^2 + 413244^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225703650421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1822807 + ... + 1942686.

Almost surely, 2^225703650420 is an apocalyptic number.

225703650420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225703650420 is an abundant number, since it is smaller than the sum of its proper divisors (501473488884).

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

225703650420 is a wasteful number, since it uses less digits than its factorization.

225703650420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765551 (or 3765540 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

Adding to 225703650420 its reverse (24056307522), we get a palindrome (249759957942).

The spelling of 225703650420 in words is "two hundred twenty-five billion, seven hundred three million, six hundred fifty thousand, four hundred twenty".