2053731689 has 2 divisors, whose sum is σ = 2053731690. Its totient is φ = 2053731688.

The previous prime is 2053731661. The next prime is 2053731707. The reversal of 2053731689 is 9861373502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1286441689 + 767290000 = 35867^2 + 27700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2053731689 is a prime.

It is not a weakly prime, because it can be changed into another prime (2053721689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026865844 + 1026865845.

It is an arithmetic number, because the mean of its divisors is an integer number (1026865845).

Almost surely, 2^2053731689 is an apocalyptic number.

It is an amenable number.

2053731689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2053731689 is an equidigital number, since it uses as much as digits as its factorization.

2053731689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 2053731689 is about 45318.1165650118. The cubic root of 2053731689 is about 1271.1044372011.

The spelling of 2053731689 in words is "two billion, fifty-three million, seven hundred thirty-one thousand, six hundred eighty-nine".