20750053177 has 12 divisors (see below), whose sum is σ = 24213979620. Its totient is φ = 17729640096.

The previous prime is 20750053153. The next prime is 20750053183. The reversal of 20750053177 is 77135005702.

It can be written as a sum of positive squares in 2 ways, for example, as 5071006521 + 15679046656 = 71211^2 + 125216^2 .

It is not a de Polignac number, because 20750053177 - 2¹⁹ = 20749528889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20750053147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 652402 + ... + 683467.

It is an arithmetic number, because the mean of its divisors is an integer number (2017831635).

Almost surely, 2^20750053177 is an apocalyptic number.

It is an amenable number.

20750053177 is a deficient number, since it is larger than the sum of its proper divisors (3463926443).

20750053177 is a wasteful number, since it uses less digits than its factorization.

20750053177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336200 (or 1336193 counting only the distinct ones).

The product of its (nonzero) digits is 51450, while the sum is 37.

Adding to 20750053177 its reverse (77135005702), we get a palindrome (97885058879).

The spelling of 20750053177 in words is "twenty billion, seven hundred fifty million, fifty-three thousand, one hundred seventy-seven".