520002164 has 48 divisors (see below), whose sum is σ = 1014128640. Its totient is φ = 231308640.

The previous prime is 520002149. The next prime is 520002179. The reversal of 520002164 is 461200025.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (520002149) and next prime (520002179).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 994007 + ... + 994529.

It is an arithmetic number, because the mean of its divisors is an integer number (21127680).

Almost surely, 2^520002164 is an apocalyptic number.

It is an amenable number.

520002164 is a deficient number, since it is larger than the sum of its proper divisors (494126476).

520002164 is a wasteful number, since it uses less digits than its factorization.

520002164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 520002164 is about 22803.5559507722. Note that the first 3 decimals coincide. The cubic root of 520002164 is about 804.1462672099.

Adding to 520002164 its reverse (461200025), we get a palindrome (981202189).

The spelling of 520002164 in words is "five hundred twenty million, two thousand, one hundred sixty-four".