20750141057 has 2 divisors, whose sum is σ = 20750141058. Its totient is φ = 20750141056.

The previous prime is 20750141039. The next prime is 20750141119. The reversal of 20750141057 is 75014105702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20049427216 + 700713841 = 141596^2 + 26471^2 .

It is a cyclic number.

It is not a de Polignac number, because 20750141057 - 2¹⁸ = 20749878913 is a prime.

It is not a weakly prime, because it can be changed into another prime (20750141957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10375070528 + 10375070529.

It is an arithmetic number, because the mean of its divisors is an integer number (10375070529).

Almost surely, 2^20750141057 is an apocalyptic number.

It is an amenable number.

20750141057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20750141057 is an equidigital number, since it uses as much as digits as its factorization.

20750141057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 32.

Adding to 20750141057 its reverse (75014105702), we get a palindrome (95764246759).

The spelling of 20750141057 in words is "twenty billion, seven hundred fifty million, one hundred forty-one thousand, fifty-seven".