520007217436 has 48 divisors (see below), whose sum is σ = 1066513029120. Its totient is φ = 217252506240.

The previous prime is 520007217427. The next prime is 520007217481. The reversal of 520007217436 is 634712700025.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 520007217395 and 520007217404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1292580 + ... + 1646443.

It is an arithmetic number, because the mean of its divisors is an integer number (22219021440).

Almost surely, 2^520007217436 is an apocalyptic number.

It is an amenable number.

520007217436 is an abundant number, since it is smaller than the sum of its proper divisors (546505811684).

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

520007217436 is a wasteful number, since it uses less digits than its factorization.

520007217436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939194 (or 2939192 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 520007217436 in words is "five hundred twenty billion, seven million, two hundred seventeen thousand, four hundred thirty-six".