25550101105 has 16 divisors (see below), whose sum is σ = 31253834880. Its totient is φ = 20047402368.

The previous prime is 25550101081. The next prime is 25550101111. The reversal of 25550101105 is 50110105552.

It is a cyclic number.

It is not a de Polignac number, because 25550101105 - 2²⁵ = 25516546673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25550101105.

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, 130197 + ... + 260866.

It is an arithmetic number, because the mean of its divisors is an integer number (1953364680).

Almost surely, 2^25550101105 is an apocalyptic number.

It is an amenable number.

25550101105 is a deficient number, since it is larger than the sum of its proper divisors (5703733775).

25550101105 is a wasteful number, since it uses less digits than its factorization.

25550101105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391320.

The product of its (nonzero) digits is 1250, while the sum is 25.

Adding to 25550101105 its reverse (50110105552), we get a palindrome (75660206657).

The spelling of 25550101105 in words is "twenty-five billion, five hundred fifty million, one hundred one thousand, one hundred five".