5166524861 has 2 divisors, whose sum is σ = 5166524862. Its totient is φ = 5166524860.

The previous prime is 5166524827. The next prime is 5166524903. The reversal of 5166524861 is 1684256615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4199688025 + 966836836 = 64805^2 + 31094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5166524861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5166524161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583262430 + 2583262431.

It is an arithmetic number, because the mean of its divisors is an integer number (2583262431).

Almost surely, 2^5166524861 is an apocalyptic number.

It is an amenable number.

5166524861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166524861 is an equidigital number, since it uses as much as digits as its factorization.

5166524861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 44.

The square root of 5166524861 is about 71878.5424240086. The cubic root of 5166524861 is about 1728.7525796610.

The spelling of 5166524861 in words is "five billion, one hundred sixty-six million, five hundred twenty-four thousand, eight hundred sixty-one".