506635225 has 6 divisors (see below), whose sum is σ = 628227710. Its totient is φ = 405308160.

The previous prime is 506635223. The next prime is 506635243. The reversal of 506635225 is 522536605.

It can be written as a sum of positive squares in 3 ways, for example, as 205209 + 506430016 = 453^2 + 22504^2 .

It is not a de Polignac number, because 506635225 - 2¹ = 506635223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506635223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10132680 + ... + 10132729.

Almost surely, 2^506635225 is an apocalyptic number.

It is an amenable number.

506635225 is a deficient number, since it is larger than the sum of its proper divisors (121592485).

506635225 is a wasteful number, since it uses less digits than its factorization.

506635225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20265419 (or 20265414 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 506635225 is about 22508.5589276613. The cubic root of 506635225 is about 797.1960300267.

The spelling of 506635225 in words is "five hundred six million, six hundred thirty-five thousand, two hundred twenty-five".