516725225 has 6 divisors (see below), whose sum is σ = 640739310. Its totient is φ = 413380160.

The previous prime is 516725213. The next prime is 516725227. The reversal of 516725225 is 522527615.

It can be written as a sum of positive squares in 3 ways, for example, as 1752976 + 514972249 = 1324^2 + 22693^2 .

It is not a de Polignac number, because 516725225 - 2¹² = 516721129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516725227) by changing a digit.

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, 10334480 + ... + 10334529.

It is an arithmetic number, because the mean of its divisors is an integer number (106789885).

Almost surely, 2^516725225 is an apocalyptic number.

It is an amenable number.

516725225 is a deficient number, since it is larger than the sum of its proper divisors (124014085).

516725225 is a wasteful number, since it uses less digits than its factorization.

516725225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20669019 (or 20669014 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 516725225 is about 22731.5909034102. The cubic root of 516725225 is about 802.4535222805.

It can be divided in two parts, 51 and 6725225, that added together give a palindrome (6725276).

The spelling of 516725225 in words is "five hundred sixteen million, seven hundred twenty-five thousand, two hundred twenty-five".