520240502 has 4 divisors (see below), whose sum is σ = 780360756. Its totient is φ = 260120250.

The previous prime is 520240499. The next prime is 520240507. The reversal of 520240502 is 205042025.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520240507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130060124 + ... + 130060127.

It is an arithmetic number, because the mean of its divisors is an integer number (195090189).

Almost surely, 2^520240502 is an apocalyptic number.

520240502 is a deficient number, since it is larger than the sum of its proper divisors (260120254).

520240502 is a wasteful number, since it uses less digits than its factorization.

520240502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260120253.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 520240502 is about 22808.7812475809. The cubic root of 520240502 is about 804.2691060185.

Adding to 520240502 its reverse (205042025), we get a palindrome (725282527).

The spelling of 520240502 in words is "five hundred twenty million, two hundred forty thousand, five hundred two".