520015252 has 24 divisors (see below), whose sum is σ = 931392000. Its totient is φ = 253974336.

The previous prime is 520015219. The next prime is 520015253. The reversal of 520015252 is 252510025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520015253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20749 + ... + 38347.

It is an arithmetic number, because the mean of its divisors is an integer number (38808000).

Almost surely, 2^520015252 is an apocalyptic number.

It is an amenable number.

520015252 is a deficient number, since it is larger than the sum of its proper divisors (411376748).

520015252 is a wasteful number, since it uses less digits than its factorization.

520015252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17775 (or 17773 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 520015252 is about 22803.8429217533. The cubic root of 520015252 is about 804.1530137062.

Adding to 520015252 its reverse (252510025), we get a palindrome (772525277).

The spelling of 520015252 in words is "five hundred twenty million, fifteen thousand, two hundred fifty-two".