25560536265 has 24 divisors (see below), whose sum is σ = 48332651328. Its totient is φ = 12392987040.

The previous prime is 25560536213. The next prime is 25560536279. The reversal of 25560536265 is 56263506552.

25560536265 is a `hidden beast` number, since 2 + 5 + 5 + 605 + 36 + 2 + 6 + 5 = 666.

It is not a de Polignac number, because 25560536265 - 2²¹ = 25558439113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25560536265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25818229 + ... + 25819218.

It is an arithmetic number, because the mean of its divisors is an integer number (2013860472).

Almost surely, 2^25560536265 is an apocalyptic number.

It is an amenable number.

25560536265 is a deficient number, since it is larger than the sum of its proper divisors (22772115063).

25560536265 is a wasteful number, since it uses less digits than its factorization.

25560536265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51637469 (or 51637466 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 25560536265 in words is "twenty-five billion, five hundred sixty million, five hundred thirty-six thousand, two hundred sixty-five".