520019164 has 36 divisors (see below), whose sum is σ = 1087236696. Its totient is φ = 216838944.

The previous prime is 520019131. The next prime is 520019173. The reversal of 520019164 is 461910025.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28602 + ... + 43105.

Almost surely, 2^520019164 is an apocalyptic number.

It is an amenable number.

520019164 is an abundant number, since it is smaller than the sum of its proper divisors (567217532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520019164 is a wasteful number, since it uses less digits than its factorization.

520019164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71762 (or 71753 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 520019164 is about 22803.9286966084. The cubic root of 520019164 is about 804.1550302104.

Adding to 520019164 its reverse (461910025), we get a palindrome (981929189).

The spelling of 520019164 in words is "five hundred twenty million, nineteen thousand, one hundred sixty-four".