520636052004 has 24 divisors (see below), whose sum is σ = 1221839525760. Its totient is φ = 172542197664.

The previous prime is 520636051973. The next prime is 520636052089. The reversal of 520636052004 is 400250636025.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125391964 + ... + 125396115.

It is an arithmetic number, because the mean of its divisors is an integer number (50909980240).

Almost surely, 2^520636052004 is an apocalyptic number.

It is an amenable number.

520636052004 is an abundant number, since it is smaller than the sum of its proper divisors (701203473756).

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

520636052004 is a wasteful number, since it uses less digits than its factorization.

520636052004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250788259 (or 250788257 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 520636052004 its reverse (400250636025), we get a palindrome (920886688029).

The spelling of 520636052004 in words is "five hundred twenty billion, six hundred thirty-six million, fifty-two thousand, four".