20540364252635 has 4 divisors (see below), whose sum is σ = 24648437103168. Its totient is φ = 16432291402104.

The previous prime is 20540364252599. The next prime is 20540364252673. The reversal of 20540364252635 is 53625246304502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20540364252635 - 2¹⁴ = 20540364236251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20540364252635.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2054036425259 + ... + 2054036425268.

It is an arithmetic number, because the mean of its divisors is an integer number (6162109275792).

Almost surely, 2^{20540364252635} is an apocalyptic number.

20540364252635 is a deficient number, since it is larger than the sum of its proper divisors (4108072850533).

20540364252635 is an equidigital number, since it uses as much as digits as its factorization.

20540364252635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108072850532.

The product of its (nonzero) digits is 5184000, while the sum is 47.

The spelling of 20540364252635 in words is "twenty trillion, five hundred forty billion, three hundred sixty-four million, two hundred fifty-two thousand, six hundred thirty-five".