2508990881 has 2 divisors, whose sum is σ = 2508990882. Its totient is φ = 2508990880.

The previous prime is 2508990779. The next prime is 2508990893. The reversal of 2508990881 is 1880998052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2412774400 + 96216481 = 49120^2 + 9809^2 .

It is a cyclic number.

It is not a de Polignac number, because 2508990881 - 2¹⁴ = 2508974497 is a prime.

It is a super-2 number, since 2×2508990881² = 12590070481882312322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2508998881) 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, 1254495440 + 1254495441.

It is an arithmetic number, because the mean of its divisors is an integer number (1254495441).

Almost surely, 2^2508990881 is an apocalyptic number.

It is an amenable number.

2508990881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2508990881 is an equidigital number, since it uses as much as digits as its factorization.

2508990881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 50.

The square root of 2508990881 is about 50089.8281190902. The cubic root of 2508990881 is about 1358.8338621478.

The spelling of 2508990881 in words is "two billion, five hundred eight million, nine hundred ninety thousand, eight hundred eighty-one".