20005250544351 has 24 divisors (see below), whose sum is σ = 29832809086080. Its totient is φ = 12904799500800.

The previous prime is 20005250544299. The next prime is 20005250544359. The reversal of 20005250544351 is 15344505250002.

20005250544351 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 5 + 250 + 54 + 4 + 351 = 666.

It is not a de Polignac number, because 20005250544351 - 2⁶ = 20005250544287 is a prime.

It is a super-2 number, since 2×20005250544351² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005250544359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3047886 + ... + 7021403.

It is an arithmetic number, because the mean of its divisors is an integer number (1243033711920).

Almost surely, 2^{20005250544351} is an apocalyptic number.

20005250544351 is a deficient number, since it is larger than the sum of its proper divisors (9827558541729).

20005250544351 is a wasteful number, since it uses less digits than its factorization.

20005250544351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10076447 (or 10076444 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 20005250544351 its reverse (15344505250002), we get a palindrome (35349755794353).

The spelling of 20005250544351 in words is "twenty trillion, five billion, two hundred fifty million, five hundred forty-four thousand, three hundred fifty-one".