23755606513 has 2 divisors, whose sum is σ = 23755606514. Its totient is φ = 23755606512.

The previous prime is 23755606487. The next prime is 23755606519. The reversal of 23755606513 is 31560655732.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22654163169 + 1101443344 = 150513^2 + 33188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23755606513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23755606513.

It is not a weakly prime, because it can be changed into another prime (23755606519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11877803256 + 11877803257.

It is an arithmetic number, because the mean of its divisors is an integer number (11877803257).

Almost surely, 2^23755606513 is an apocalyptic number.

It is an amenable number.

23755606513 is a deficient number, since it is larger than the sum of its proper divisors (1).

23755606513 is an equidigital number, since it uses as much as digits as its factorization.

23755606513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 43.

The spelling of 23755606513 in words is "twenty-three billion, seven hundred fifty-five million, six hundred six thousand, five hundred thirteen".