2611605523 has 2 divisors, whose sum is σ = 2611605524. Its totient is φ = 2611605522.

The previous prime is 2611605511. The next prime is 2611605589. The reversal of 2611605523 is 3255061162.

2611605523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2611605523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2611605223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305802761 + 1305802762.

It is an arithmetic number, because the mean of its divisors is an integer number (1305802762).

Almost surely, 2^2611605523 is an apocalyptic number.

2611605523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2611605523 is an equidigital number, since it uses as much as digits as its factorization.

2611605523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2611605523 is about 51103.8699415220. The cubic root of 2611605523 is about 1377.1117783274. Note that the first 3 decimals are identical.

Adding to 2611605523 its reverse (3255061162), we get a palindrome (5866666685).

The spelling of 2611605523 in words is "two billion, six hundred eleven million, six hundred five thousand, five hundred twenty-three".