5981540521 has 16 divisors (see below), whose sum is σ = 6556834368. Its totient is φ = 5411563200.

The previous prime is 5981540519. The next prime is 5981540533. The reversal of 5981540521 is 1250451895.

It is a cyclic number.

It is not a de Polignac number, because 5981540521 - 2¹ = 5981540519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5981540581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2973406 + ... + 2975416.

It is an arithmetic number, because the mean of its divisors is an integer number (409802148).

Almost surely, 2^5981540521 is an apocalyptic number.

It is an amenable number.

5981540521 is a deficient number, since it is larger than the sum of its proper divisors (575293847).

5981540521 is a wasteful number, since it uses less digits than its factorization.

5981540521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192.

The product of its (nonzero) digits is 72000, while the sum is 40.

The square root of 5981540521 is about 77340.4197105239. The cubic root of 5981540521 is about 1815.2551729609.

The spelling of 5981540521 in words is "five billion, nine hundred eighty-one million, five hundred forty thousand, five hundred twenty-one".