520547380220 has 24 divisors (see below), whose sum is σ = 1249313712864. Its totient is φ = 178473387456.

The previous prime is 520547380151. The next prime is 520547380267. The reversal of 520547380220 is 22083745025.

It is a congruent number.

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, 1859097647 + ... + 1859097926.

It is an arithmetic number, because the mean of its divisors is an integer number (52054738036).

Almost surely, 2^520547380220 is an apocalyptic number.

It is an amenable number.

520547380220 is an abundant number, since it is smaller than the sum of its proper divisors (728766332644).

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

520547380220 is a wasteful number, since it uses less digits than its factorization.

520547380220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718195589 (or 3718195587 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 520547380220 in words is "five hundred twenty billion, five hundred forty-seven million, three hundred eighty thousand, two hundred twenty".