425133220 has 12 divisors (see below), whose sum is σ = 892779804. Its totient is φ = 170053280.

The previous prime is 425133211. The next prime is 425133253. The reversal of 425133220 is 22331524.

It can be written as a sum of positive squares in 2 ways, for example, as 139996224 + 285136996 = 11832^2 + 16886^2 .

It is a junction number, because it is equal to n+sod(n) for n = 425133191 and 425133200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10628311 + ... + 10628350.

It is an arithmetic number, because the mean of its divisors is an integer number (74398317).

Almost surely, 2^425133220 is an apocalyptic number.

It is an amenable number.

425133220 is an abundant number, since it is smaller than the sum of its proper divisors (467646584).

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

425133220 is a wasteful number, since it uses less digits than its factorization.

425133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21256670 (or 21256668 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 425133220 is about 20618.7589345237. The cubic root of 425133220 is about 751.9258476189.

Adding to 425133220 its reverse (22331524), we get a palindrome (447464744).

The spelling of 425133220 in words is "four hundred twenty-five million, one hundred thirty-three thousand, two hundred twenty".