506551225 has 6 divisors (see below), whose sum is σ = 628123550. Its totient is φ = 405240960.

The previous prime is 506551217. The next prime is 506551271. The reversal of 506551225 is 522155605.

It can be written as a sum of positive squares in 3 ways, for example, as 29041321 + 477509904 = 5389^2 + 21852^2 .

It is not a de Polignac number, because 506551225 - 2³ = 506551217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10131000 + ... + 10131049.

Almost surely, 2^506551225 is an apocalyptic number.

It is an amenable number.

506551225 is a deficient number, since it is larger than the sum of its proper divisors (121572325).

506551225 is a wasteful number, since it uses less digits than its factorization.

506551225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20262059 (or 20262054 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 506551225 is about 22506.6928934484. The cubic root of 506551225 is about 797.1519692874.

The spelling of 506551225 in words is "five hundred six million, five hundred fifty-one thousand, two hundred twenty-five".