5164503991 has 2 divisors, whose sum is σ = 5164503992. Its totient is φ = 5164503990.

The previous prime is 5164503923. The next prime is 5164504031. The reversal of 5164503991 is 1993054615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5164503991 - 2¹⁵ = 5164471223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5164503901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582251995 + 2582251996.

It is an arithmetic number, because the mean of its divisors is an integer number (2582251996).

Almost surely, 2^5164503991 is an apocalyptic number.

5164503991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5164503991 is an equidigital number, since it uses as much as digits as its factorization.

5164503991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 5164503991 is about 71864.4835158509. The cubic root of 5164503991 is about 1728.5271515496.

The spelling of 5164503991 in words is "five billion, one hundred sixty-four million, five hundred three thousand, nine hundred ninety-one".