2551500163 has 2 divisors, whose sum is σ = 2551500164. Its totient is φ = 2551500162.

The previous prime is 2551500121. The next prime is 2551500173. The reversal of 2551500163 is 3610051552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2551500163 - 2⁹ = 2551499651 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551500103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275750081 + 1275750082.

It is an arithmetic number, because the mean of its divisors is an integer number (1275750082).

Almost surely, 2^2551500163 is an apocalyptic number.

2551500163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551500163 is an equidigital number, since it uses as much as digits as its factorization.

2551500163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 2551500163 is about 50512.3763349142. The cubic root of 2551500163 is about 1366.4650664425.

The spelling of 2551500163 in words is "two billion, five hundred fifty-one million, five hundred thousand, one hundred sixty-three".