2053517693 has 2 divisors, whose sum is σ = 2053517694. Its totient is φ = 2053517692.

The previous prime is 2053517689. The next prime is 2053517707. The reversal of 2053517693 is 3967153502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1833381124 + 220136569 = 42818^2 + 14837^2 .

It is a cyclic number.

It is not a de Polignac number, because 2053517693 - 2² = 2053517689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2053517693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2053717693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026758846 + 1026758847.

It is an arithmetic number, because the mean of its divisors is an integer number (1026758847).

Almost surely, 2^2053517693 is an apocalyptic number.

It is an amenable number.

2053517693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2053517693 is an equidigital number, since it uses as much as digits as its factorization.

2053517693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 2053517693 is about 45315.7554609873. The cubic root of 2053517693 is about 1271.0602865598.

The spelling of 2053517693 in words is "two billion, fifty-three million, five hundred seventeen thousand, six hundred ninety-three".