25555260055 has 16 divisors (see below), whose sum is σ = 33042683520. Its totient is φ = 18861619968.

The previous prime is 25555260041. The next prime is 25555260061. The reversal of 25555260055 is 55006255552.

It is a cyclic number.

It is not a de Polignac number, because 25555260055 - 2⁵ = 25555260023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21586 + ... + 227104.

It is an arithmetic number, because the mean of its divisors is an integer number (2065167720).

Almost surely, 2^25555260055 is an apocalyptic number.

25555260055 is a deficient number, since it is larger than the sum of its proper divisors (7487423465).

25555260055 is a wasteful number, since it uses less digits than its factorization.

25555260055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207450.

The product of its (nonzero) digits is 375000, while the sum is 40.

The spelling of 25555260055 in words is "twenty-five billion, five hundred fifty-five million, two hundred sixty thousand, fifty-five".