5166494057 has 2 divisors, whose sum is σ = 5166494058. Its totient is φ = 5166494056.

The previous prime is 5166494051. The next prime is 5166494087. The reversal of 5166494057 is 7504946615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4363395136 + 803098921 = 66056^2 + 28339^2 .

It is a cyclic number.

It is not a de Polignac number, because 5166494057 - 2⁶ = 5166493993 is a prime.

It is not a weakly prime, because it can be changed into another prime (5166494051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583247028 + 2583247029.

It is an arithmetic number, because the mean of its divisors is an integer number (2583247029).

Almost surely, 2^5166494057 is an apocalyptic number.

It is an amenable number.

5166494057 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166494057 is an equidigital number, since it uses as much as digits as its factorization.

5166494057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 5166494057 is about 71878.3281455544. The cubic root of 5166494057 is about 1728.7491439151.

The spelling of 5166494057 in words is "five billion, one hundred sixty-six million, four hundred ninety-four thousand, fifty-seven".