6001980521 has 4 divisors (see below), whose sum is σ = 6016655700. Its totient is φ = 5987305344.

The previous prime is 6001980499. The next prime is 6001980541. The reversal of 6001980521 is 1250891006.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1250891006 = 2 ⋅625445503.

It can be written as a sum of positive squares in 2 ways, for example, as 5706140521 + 295840000 = 75539^2 + 17200^2 .

It is a cyclic number.

It is not a de Polignac number, because 6001980521 - 2¹⁸ = 6001718377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6001980541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7336976 + ... + 7337793.

It is an arithmetic number, because the mean of its divisors is an integer number (1504163925).

Almost surely, 2^6001980521 is an apocalyptic number.

It is an amenable number.

6001980521 is a deficient number, since it is larger than the sum of its proper divisors (14675179).

6001980521 is a wasteful number, since it uses less digits than its factorization.

6001980521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14675178.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 6001980521 is about 77472.4500774308. The cubic root of 6001980521 is about 1817.3205066982.

The spelling of 6001980521 in words is "six billion, one million, nine hundred eighty thousand, five hundred twenty-one".