25505505053 has 16 divisors (see below), whose sum is σ = 29458840320. Its totient is φ = 21629904000.

The previous prime is 25505505043. The next prime is 25505505073. The reversal of 25505505053 is 35050550552.

It is a cyclic number.

It is not a de Polignac number, because 25505505053 - 2⁸ = 25505504797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25505505043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034888 + ... + 1059246.

It is an arithmetic number, because the mean of its divisors is an integer number (1841177520).

Almost surely, 2^25505505053 is an apocalyptic number.

It is an amenable number.

25505505053 is a deficient number, since it is larger than the sum of its proper divisors (3953335267).

25505505053 is a wasteful number, since it uses less digits than its factorization.

25505505053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25948.

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 25505505053 in words is "twenty-five billion, five hundred five million, five hundred five thousand, fifty-three".