2605142653 has 2 divisors, whose sum is σ = 2605142654. Its totient is φ = 2605142652.

The previous prime is 2605142621. The next prime is 2605142693. The reversal of 2605142653 is 3562415062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1660318009 + 944824644 = 40747^2 + 30738^2 .

It is a cyclic number.

It is not a de Polignac number, because 2605142653 - 2⁵ = 2605142621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2605142693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302571326 + 1302571327.

It is an arithmetic number, because the mean of its divisors is an integer number (1302571327).

Almost surely, 2^2605142653 is an apocalyptic number.

It is an amenable number.

2605142653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2605142653 is an equidigital number, since it uses as much as digits as its factorization.

2605142653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2605142653 is about 51040.5980862294. The cubic root of 2605142653 is about 1375.9748728187.

The spelling of 2605142653 in words is "two billion, six hundred five million, one hundred forty-two thousand, six hundred fifty-three".