6051980021 has 4 divisors (see below), whose sum is σ = 6055771212. Its totient is φ = 6048188832.

The previous prime is 6051980017. The next prime is 6051980057. The reversal of 6051980021 is 1200891506.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1289599921 + 4762380100 = 35911^2 + 69010^2 .

It is a cyclic number.

It is not a de Polignac number, because 6051980021 - 2² = 6051980017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6051980021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6051980071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1893200 + ... + 1896393.

It is an arithmetic number, because the mean of its divisors is an integer number (1513942803).

Almost surely, 2^6051980021 is an apocalyptic number.

It is an amenable number.

6051980021 is a deficient number, since it is larger than the sum of its proper divisors (3791191).

6051980021 is a wasteful number, since it uses less digits than its factorization.

6051980021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791190.

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

The square root of 6051980021 is about 77794.4729463475. The cubic root of 6051980021 is about 1822.3529544799.

The spelling of 6051980021 in words is "six billion, fifty-one million, nine hundred eighty thousand, twenty-one".