2611660253 has 2 divisors, whose sum is σ = 2611660254. Its totient is φ = 2611660252.

The previous prime is 2611660231. The next prime is 2611660267. The reversal of 2611660253 is 3520661162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1768454809 + 843205444 = 42053^2 + 29038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2611660253 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2611660223) 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, 1305830126 + 1305830127.

It is an arithmetic number, because the mean of its divisors is an integer number (1305830127).

Almost surely, 2^2611660253 is an apocalyptic number.

It is an amenable number.

2611660253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2611660253 is an equidigital number, since it uses as much as digits as its factorization.

2611660253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2611660253 is about 51104.4054167544. The cubic root of 2611660253 is about 1377.1213980550.

Subtracting 2611660253 from its reverse (3520661162), we obtain a palindrome (909000909).

The spelling of 2611660253 in words is "two billion, six hundred eleven million, six hundred sixty thousand, two hundred fifty-three".