53205769 has 2 divisors, whose sum is σ = 53205770. Its totient is φ = 53205768.

The previous prime is 53205709. The next prime is 53205773. The reversal of 53205769 is 96750235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49519369 + 3686400 = 7037^2 + 1920^2 .

It is a cyclic number.

It is not a de Polignac number, because 53205769 - 2¹¹ = 53203721 is a prime.

It is a super-2 number, since 2×53205769² = 5661707709762722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53205709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26602884 + 26602885.

It is an arithmetic number, because the mean of its divisors is an integer number (26602885).

Almost surely, 2^53205769 is an apocalyptic number.

It is an amenable number.

53205769 is a deficient number, since it is larger than the sum of its proper divisors (1).

53205769 is an equidigital number, since it uses as much as digits as its factorization.

53205769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 53205769 is about 7294.2284718810. The cubic root of 53205769 is about 376.1140653817.

The spelling of 53205769 in words is "fifty-three million, two hundred five thousand, seven hundred sixty-nine".