5206540426520 has 32 divisors (see below), whose sum is σ = 11724585246000. Its totient is φ = 2080861630848.

The previous prime is 5206540426517. The next prime is 5206540426523. The reversal of 5206540426520 is 256240456025.

It is an interprime number because it is at equal distance from previous prime (5206540426517) and next prime (5206540426523).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5206540426523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54781295 + ... + 54876254.

Almost surely, 2^{5206540426520} is an apocalyptic number.

It is an amenable number.

5206540426520 is an abundant number, since it is smaller than the sum of its proper divisors (6518044819480).

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

5206540426520 is a wasteful number, since it uses less digits than its factorization.

5206540426520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109658747 (or 109658743 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 5206540426520 in words is "five trillion, two hundred six billion, five hundred forty million, four hundred twenty-six thousand, five hundred twenty".