5371670021 has 2 divisors, whose sum is σ = 5371670022. Its totient is φ = 5371670020.

The previous prime is 5371669957. The next prime is 5371670069. The reversal of 5371670021 is 1200761735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5234522500 + 137147521 = 72350^2 + 11711^2 .

It is a cyclic number.

It is not a de Polignac number, because 5371670021 - 2⁶ = 5371669957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5371670021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5371670221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2685835010 + 2685835011.

It is an arithmetic number, because the mean of its divisors is an integer number (2685835011).

Almost surely, 2^5371670021 is an apocalyptic number.

It is an amenable number.

5371670021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5371670021 is an equidigital number, since it uses as much as digits as its factorization.

5371670021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 5371670021 is about 73291.6777062717. The cubic root of 5371670021 is about 1751.3372115267.

The spelling of 5371670021 in words is "five billion, three hundred seventy-one million, six hundred seventy thousand, twenty-one".