520047225 has 18 divisors (see below), whose sum is σ = 931462766. Its totient is φ = 277358400.

The previous prime is 520047197. The next prime is 520047257. The reversal of 520047225 is 522740025.

It can be written as a sum of positive squares in 3 ways, for example, as 11634921 + 508412304 = 3411^2 + 22548^2 .

It is not a de Polignac number, because 520047225 - 2⁵ = 520047193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1155436 + ... + 1155885.

Almost surely, 2^520047225 is an apocalyptic number.

It is an amenable number.

520047225 is a deficient number, since it is larger than the sum of its proper divisors (411415541).

520047225 is a wasteful number, since it uses less digits than its factorization.

520047225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311337 (or 2311329 counting only the distinct ones).

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

The square root of 520047225 is about 22804.5439550981. The cubic root of 520047225 is about 804.1694944135.

It can be divided in two parts, 5200 and 47225, that added together give a palindrome (52425).

The spelling of 520047225 in words is "five hundred twenty million, forty-seven thousand, two hundred twenty-five".