2021105250053 has 2 divisors, whose sum is σ = 2021105250054. Its totient is φ = 2021105250052.

The previous prime is 2021105250001. The next prime is 2021105250077. The reversal of 2021105250053 is 3500525011202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1976338307329 + 44766942724 = 1405823^2 + 211582^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021105250053 - 2¹⁰ = 2021105249029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021105259053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010552625026 + 1010552625027.

It is an arithmetic number, because the mean of its divisors is an integer number (1010552625027).

Almost surely, 2^{2021105250053} is an apocalyptic number.

It is an amenable number.

2021105250053 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021105250053 is an equidigital number, since it uses as much as digits as its factorization.

2021105250053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 2021105250053 in words is "two trillion, twenty-one billion, one hundred five million, two hundred fifty thousand, fifty-three".