53782769 has 2 divisors, whose sum is σ = 53782770. Its totient is φ = 53782768.

The previous prime is 53782741. The next prime is 53782783. The reversal of 53782769 is 96728735.

53782769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48832144 + 4950625 = 6988^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 53782769 - 2⁸ = 53782513 is a prime.

It is a super-2 number, since 2×53782769² = 5785172482614722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53782739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26891384 + 26891385.

It is an arithmetic number, because the mean of its divisors is an integer number (26891385).

Almost surely, 2^53782769 is an apocalyptic number.

It is an amenable number.

53782769 is a deficient number, since it is larger than the sum of its proper divisors (1).

53782769 is an equidigital number, since it uses as much as digits as its factorization.

53782769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The square root of 53782769 is about 7333.6736360435. The cubic root of 53782769 is about 377.4687932334.

The spelling of 53782769 in words is "fifty-three million, seven hundred eighty-two thousand, seven hundred sixty-nine".