65761291 has 2 divisors, whose sum is σ = 65761292. Its totient is φ = 65761290.

The previous prime is 65761271. The next prime is 65761303. The reversal of 65761291 is 19216756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65761291 - 2²⁵ = 32206859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65761291.

It is not a weakly prime, because it can be changed into another prime (65761231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32880645 + 32880646.

It is an arithmetic number, because the mean of its divisors is an integer number (32880646).

Almost surely, 2^65761291 is an apocalyptic number.

65761291 is a deficient number, since it is larger than the sum of its proper divisors (1).

65761291 is an equidigital number, since it uses as much as digits as its factorization.

65761291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 65761291 is about 8109.3335731119. Note that the first 3 decimals coincide. The cubic root of 65761291 is about 403.6362011904.

The spelling of 65761291 in words is "sixty-five million, seven hundred sixty-one thousand, two hundred ninety-one".