2125565653 has 2 divisors, whose sum is σ = 2125565654. Its totient is φ = 2125565652.

The previous prime is 2125565579. The next prime is 2125565669. The reversal of 2125565653 is 3565655212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1695957124 + 429608529 = 41182^2 + 20727^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125565653 - 2¹⁷ = 2125434581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125565153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062782826 + 1062782827.

It is an arithmetic number, because the mean of its divisors is an integer number (1062782827).

Almost surely, 2^2125565653 is an apocalyptic number.

It is an amenable number.

2125565653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125565653 is an equidigital number, since it uses as much as digits as its factorization.

2125565653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270000, while the sum is 40.

The square root of 2125565653 is about 46103.8572464387. The cubic root of 2125565653 is about 1285.7548599653.

The spelling of 2125565653 in words is "two billion, one hundred twenty-five million, five hundred sixty-five thousand, six hundred fifty-three".