520220441837 has 12 divisors (see below), whose sum is σ = 554079936480. Its totient is φ = 488327265216.

The previous prime is 520220441831. The next prime is 520220441849. The reversal of 520220441837 is 738144022025.

It is a happy number.

It is not a de Polignac number, because 520220441837 - 2⁸ = 520220441581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520220441837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520220441831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2265233 + ... + 2484294.

It is an arithmetic number, because the mean of its divisors is an integer number (46173328040).

Almost surely, 2^520220441837 is an apocalyptic number.

It is an amenable number.

520220441837 is a deficient number, since it is larger than the sum of its proper divisors (33859494643).

520220441837 is a wasteful number, since it uses less digits than its factorization.

520220441837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749940 (or 4749923 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 520220441837 in words is "five hundred twenty billion, two hundred twenty million, four hundred forty-one thousand, eight hundred thirty-seven".