2189726053 has 2 divisors, whose sum is σ = 2189726054. Its totient is φ = 2189726052.

The previous prime is 2189725933. The next prime is 2189726081. The reversal of 2189726053 is 3506279812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1516167844 + 673558209 = 38938^2 + 25953^2 .

It is a cyclic number.

It is not a de Polignac number, because 2189726053 - 2²⁵ = 2156171621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2189736053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094863026 + 1094863027.

It is an arithmetic number, because the mean of its divisors is an integer number (1094863027).

Almost surely, 2^2189726053 is an apocalyptic number.

It is an amenable number.

2189726053 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189726053 is an equidigital number, since it uses as much as digits as its factorization.

2189726053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 2189726053 is about 46794.5087910964. The cubic root of 2189726053 is about 1298.5637101660.

The spelling of 2189726053 in words is "two billion, one hundred eighty-nine million, seven hundred twenty-six thousand, fifty-three".