2502409961 has 2 divisors, whose sum is σ = 2502409962. Its totient is φ = 2502409960.

The previous prime is 2502409919. The next prime is 2502410017. The reversal of 2502409961 is 1699042052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2257675225 + 244734736 = 47515^2 + 15644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2502409961 is a prime.

It is a super-2 number, since 2×2502409961² = 12524111225824043042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2502409661) 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, 1251204980 + 1251204981.

It is an arithmetic number, because the mean of its divisors is an integer number (1251204981).

Almost surely, 2^2502409961 is an apocalyptic number.

It is an amenable number.

2502409961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2502409961 is an equidigital number, since it uses as much as digits as its factorization.

2502409961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 2502409961 is about 50024.0938048857. The cubic root of 2502409961 is about 1357.6447776112.

The spelling of 2502409961 in words is "two billion, five hundred two million, four hundred nine thousand, nine hundred sixty-one".