5921913509 has 2 divisors, whose sum is σ = 5921913510. Its totient is φ = 5921913508.

The previous prime is 5921913499. The next prime is 5921913511. The reversal of 5921913509 is 9053191295.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5628750625 + 293162884 = 75025^2 + 17122^2 .

It is a cyclic number.

It is not a de Polignac number, because 5921913509 - 2⁸ = 5921913253 is a prime.

Together with 5921913511, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5921913509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5921993509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2960956754 + 2960956755.

It is an arithmetic number, because the mean of its divisors is an integer number (2960956755).

Almost surely, 2^5921913509 is an apocalyptic number.

It is an amenable number.

5921913509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5921913509 is an equidigital number, since it uses as much as digits as its factorization.

5921913509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109350, while the sum is 44.

The square root of 5921913509 is about 76953.9700665274. The cubic root of 5921913509 is about 1809.2032256111.

The spelling of 5921913509 in words is "five billion, nine hundred twenty-one million, nine hundred thirteen thousand, five hundred nine".