65055769 has 2 divisors, whose sum is σ = 65055770. Its totient is φ = 65055768.

The previous prime is 65055737. The next prime is 65055773. The reversal of 65055769 is 96755056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64593369 + 462400 = 8037^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 65055769 - 2⁵ = 65055737 is a prime.

It is a super-2 number, since 2×65055769² = 8464506160362722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65055709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32527884 + 32527885.

It is an arithmetic number, because the mean of its divisors is an integer number (32527885).

Almost surely, 2^65055769 is an apocalyptic number.

It is an amenable number.

65055769 is a deficient number, since it is larger than the sum of its proper divisors (1).

65055769 is an equidigital number, since it uses as much as digits as its factorization.

65055769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 43.

The square root of 65055769 is about 8065.7156533069. The cubic root of 65055769 is about 402.1875336826.

The spelling of 65055769 in words is "sixty-five million, fifty-five thousand, seven hundred sixty-nine".