5187320051 has 2 divisors, whose sum is σ = 5187320052. Its totient is φ = 5187320050.

The previous prime is 5187320027. The next prime is 5187320059. The reversal of 5187320051 is 1500237815.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5187320051 is a prime.

It is not a weakly prime, because it can be changed into another prime (5187320059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2593660025 + 2593660026.

It is an arithmetic number, because the mean of its divisors is an integer number (2593660026).

Almost surely, 2^5187320051 is an apocalyptic number.

5187320051 is a deficient number, since it is larger than the sum of its proper divisors (1).

5187320051 is an equidigital number, since it uses as much as digits as its factorization.

5187320051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 5187320051 is about 72023.0522194110. The cubic root of 5187320051 is about 1731.0688763653.

Adding to 5187320051 its reverse (1500237815), we get a palindrome (6687557866).

The spelling of 5187320051 in words is "five billion, one hundred eighty-seven million, three hundred twenty thousand, fifty-one".