520225204 has 6 divisors (see below), whose sum is σ = 910394114. Its totient is φ = 260112600.

The previous prime is 520225193. The next prime is 520225231. The reversal of 520225204 is 402522025.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 513475600 + 6749604 = 22660^2 + 2598^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65028147 + ... + 65028154.

Almost surely, 2^520225204 is an apocalyptic number.

It is an amenable number.

520225204 is a deficient number, since it is larger than the sum of its proper divisors (390168910).

520225204 is a wasteful number, since it uses less digits than its factorization.

520225204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130056305 (or 130056303 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 520225204 is about 22808.4458918182. The cubic root of 520225204 is about 804.2612225945.

Adding to 520225204 its reverse (402522025), we get a palindrome (922747229).

The spelling of 520225204 in words is "five hundred twenty million, two hundred twenty-five thousand, two hundred four".