20251126455773 has 2 divisors, whose sum is σ = 20251126455774. Its totient is φ = 20251126455772.

The previous prime is 20251126455691. The next prime is 20251126455797. The reversal of 20251126455773 is 37755462115202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20251098014884 + 28440889 = 4500122^2 + 5333^2 .

It is a cyclic number.

It is not a de Polignac number, because 20251126455773 - 2¹⁸ = 20251126193629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20251126455473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10125563227886 + 10125563227887.

It is an arithmetic number, because the mean of its divisors is an integer number (10125563227887).

Almost surely, 2^{20251126455773} is an apocalyptic number.

It is an amenable number.

20251126455773 is a deficient number, since it is larger than the sum of its proper divisors (1).

20251126455773 is an equidigital number, since it uses as much as digits as its factorization.

20251126455773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528000, while the sum is 50.

The spelling of 20251126455773 in words is "twenty trillion, two hundred fifty-one billion, one hundred twenty-six million, four hundred fifty-five thousand, seven hundred seventy-three".