5151551257 has 2 divisors, whose sum is σ = 5151551258. Its totient is φ = 5151551256.

The previous prime is 5151551239. The next prime is 5151551261. The reversal of 5151551257 is 7521551515.

5151551257 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2951096976 + 2200454281 = 54324^2 + 46909^2 .

It is a cyclic number.

It is not a de Polignac number, because 5151551257 - 2⁷ = 5151551129 is a prime.

It is not a weakly prime, because it can be changed into another prime (5151551227) 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, 2575775628 + 2575775629.

It is an arithmetic number, because the mean of its divisors is an integer number (2575775629).

Almost surely, 2^5151551257 is an apocalyptic number.

It is an amenable number.

5151551257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5151551257 is an equidigital number, since it uses as much as digits as its factorization.

5151551257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43750, while the sum is 37.

The square root of 5151551257 is about 71774.3077779229. The cubic root of 5151551257 is about 1727.0808754485.

The spelling of 5151551257 in words is "five billion, one hundred fifty-one million, five hundred fifty-one thousand, two hundred fifty-seven".