25550122655 has 16 divisors (see below), whose sum is σ = 31939564800. Its totient is φ = 19599252480.

The previous prime is 25550122607. The next prime is 25550122667. The reversal of 25550122655 is 55622105552.

It is not a de Polignac number, because 25550122655 - 2¹⁶ = 25550057119 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, 739250 + ... + 773039.

It is an arithmetic number, because the mean of its divisors is an integer number (1996222800).

Almost surely, 2^25550122655 is an apocalyptic number.

25550122655 is a deficient number, since it is larger than the sum of its proper divisors (6389442145).

25550122655 is a wasteful number, since it uses less digits than its factorization.

25550122655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512434.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 25550122655 in words is "twenty-five billion, five hundred fifty million, one hundred twenty-two thousand, six hundred fifty-five".