2053802257817 has 2 divisors, whose sum is σ = 2053802257818. Its totient is φ = 2053802257816.

The previous prime is 2053802257811. The next prime is 2053802257931. The reversal of 2053802257817 is 7187522083502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1988131020121 + 65671237696 = 1410011^2 + 256264^2 .

It is a cyclic number.

It is not a de Polignac number, because 2053802257817 - 2²⁶ = 2053735148953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2053802257811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026901128908 + 1026901128909.

It is an arithmetic number, because the mean of its divisors is an integer number (1026901128909).

Almost surely, 2^{2053802257817} is an apocalyptic number.

It is an amenable number.

2053802257817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2053802257817 is an equidigital number, since it uses as much as digits as its factorization.

2053802257817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 2053802257817 in words is "two trillion, fifty-three billion, eight hundred two million, two hundred fifty-seven thousand, eight hundred seventeen".