5307000021 has 12 divisors (see below), whose sum is σ = 7872847372. Its totient is φ = 3442378176.

The previous prime is 5307000011. The next prime is 5307000037. The reversal of 5307000021 is 1200007035.

It can be written as a sum of positive squares in 2 ways, for example, as 4204095921 + 1102904100 = 64839^2 + 33210^2 .

It is not a de Polignac number, because 5307000021 - 2¹⁰ = 5306998997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5306999958 and 5307000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5307000011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7968136 + ... + 7968801.

Almost surely, 2^5307000021 is an apocalyptic number.

It is an amenable number.

5307000021 is a deficient number, since it is larger than the sum of its proper divisors (2565847351).

5307000021 is a wasteful number, since it uses less digits than its factorization.

5307000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15936980 (or 15936977 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 5307000021 is about 72849.1593705789. The cubic root of 5307000021 is about 1744.2806503996.

Adding to 5307000021 its reverse (1200007035), we get a palindrome (6507007056).

The spelling of 5307000021 in words is "five billion, three hundred seven million, twenty-one", and thus it is an aban number.