5151500251 has 2 divisors, whose sum is σ = 5151500252. Its totient is φ = 5151500250.

The previous prime is 5151500243. The next prime is 5151500311. The reversal of 5151500251 is 1520051515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5151500251 - 2³ = 5151500243 is a prime.

It is not a weakly prime, because it can be changed into another prime (5151500551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2575750125 + 2575750126.

It is an arithmetic number, because the mean of its divisors is an integer number (2575750126).

Almost surely, 2^5151500251 is an apocalyptic number.

5151500251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5151500251 is an equidigital number, since it uses as much as digits as its factorization.

5151500251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 5151500251 is about 71773.9524549122. The cubic root of 5151500251 is about 1727.0751754322.

Adding to 5151500251 its reverse (1520051515), we get a palindrome (6671551766).

The spelling of 5151500251 in words is "five billion, one hundred fifty-one million, five hundred thousand, two hundred fifty-one".