20125203055 has 16 divisors (see below), whose sum is σ = 24526585440. Its totient is φ = 15849580032.

The previous prime is 20125203037. The next prime is 20125203079. The reversal of 20125203055 is 55030252102.

It is a happy number.

It is not a de Polignac number, because 20125203055 - 2¹¹ = 20125201007 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, 520347 + ... + 557683.

It is an arithmetic number, because the mean of its divisors is an integer number (1532911590).

Almost surely, 2^20125203055 is an apocalyptic number.

20125203055 is a deficient number, since it is larger than the sum of its proper divisors (4401382385).

20125203055 is a wasteful number, since it uses less digits than its factorization.

20125203055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39018.

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 20125203055 its reverse (55030252102), we get a palindrome (75155455157).

The spelling of 20125203055 in words is "twenty billion, one hundred twenty-five million, two hundred three thousand, fifty-five".