2499565841 has 2 divisors, whose sum is σ = 2499565842. Its totient is φ = 2499565840.

The previous prime is 2499565823. The next prime is 2499565853. The reversal of 2499565841 is 1485659942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1971715216 + 527850625 = 44404^2 + 22975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2499565841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2499565141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249782920 + 1249782921.

It is an arithmetic number, because the mean of its divisors is an integer number (1249782921).

Almost surely, 2^2499565841 is an apocalyptic number.

It is an amenable number.

2499565841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499565841 is an equidigital number, since it uses as much as digits as its factorization.

2499565841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 53.

The square root of 2499565841 is about 49995.6582214896. The cubic root of 2499565841 is about 1357.1302378265.

The spelling of 2499565841 in words is "two billion, four hundred ninety-nine million, five hundred sixty-five thousand, eight hundred forty-one".