2536528256393 has 2 divisors, whose sum is σ = 2536528256394. Its totient is φ = 2536528256392.

The previous prime is 2536528256333. The next prime is 2536528256407. The reversal of 2536528256393 is 3936528256352.

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., 2382321249529 + 154207006864 = 1543477^2 + 392692^2 .

It is a cyclic number.

It is not a de Polignac number, because 2536528256393 - 2³⁴ = 2519348387209 is a prime.

It is a super-2 number, since 2×2536528256393² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2536528256333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268264128196 + 1268264128197.

It is an arithmetic number, because the mean of its divisors is an integer number (1268264128197).

Almost surely, 2^{2536528256393} is an apocalyptic number.

It is an amenable number.

2536528256393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2536528256393 is an equidigital number, since it uses as much as digits as its factorization.

2536528256393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984000, while the sum is 59.

The spelling of 2536528256393 in words is "two trillion, five hundred thirty-six billion, five hundred twenty-eight million, two hundred fifty-six thousand, three hundred ninety-three".