25605061210535 has 4 divisors (see below), whose sum is σ = 30726073452648. Its totient is φ = 20484048968424.

The previous prime is 25605061210511. The next prime is 25605061210541. The reversal of 25605061210535 is 53501216050652.

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 25605061210535 - 2³⁰ = 25603987468711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25605061210492 and 25605061210501.

It is a congruent number.

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, 2560506121049 + ... + 2560506121058.

It is an arithmetic number, because the mean of its divisors is an integer number (7681518363162).

Almost surely, 2^{25605061210535} is an apocalyptic number.

25605061210535 is a deficient number, since it is larger than the sum of its proper divisors (5121012242113).

25605061210535 is an equidigital number, since it uses as much as digits as its factorization.

25605061210535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121012242112.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 25605061210535 in words is "twenty-five trillion, six hundred five billion, sixty-one million, two hundred ten thousand, five hundred thirty-five".