25255775506655 has 8 divisors (see below), whose sum is σ = 30331711425312. Its totient is φ = 20188099860448.

The previous prime is 25255775506649. The next prime is 25255775506789. The reversal of 25255775506655 is 55660557755252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25255775506655 - 2¹⁶ = 25255775441119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25255775506591 and 25255775506600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2065061384 + ... + 2065073613.

It is an arithmetic number, because the mean of its divisors is an integer number (3791463928164).

Almost surely, 2^{25255775506655} is an apocalyptic number.

25255775506655 is a deficient number, since it is larger than the sum of its proper divisors (5075935918657).

25255775506655 is a wasteful number, since it uses less digits than its factorization.

25255775506655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130136225.

The product of its (nonzero) digits is 551250000, while the sum is 65.

The spelling of 25255775506655 in words is "twenty-five trillion, two hundred fifty-five billion, seven hundred seventy-five million, five hundred six thousand, six hundred fifty-five".