2162505823 has 2 divisors, whose sum is σ = 2162505824. Its totient is φ = 2162505822.

The previous prime is 2162505799. The next prime is 2162505929. The reversal of 2162505823 is 3285052612.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2162505823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2162503823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081252911 + 1081252912.

It is an arithmetic number, because the mean of its divisors is an integer number (1081252912).

Almost surely, 2^2162505823 is an apocalyptic number.

2162505823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162505823 is an equidigital number, since it uses as much as digits as its factorization.

2162505823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 2162505823 is about 46502.7507035874. The cubic root of 2162505823 is about 1293.1604941752.

The spelling of 2162505823 in words is "two billion, one hundred sixty-two million, five hundred five thousand, eight hundred twenty-three".