65266291 has 2 divisors, whose sum is σ = 65266292. Its totient is φ = 65266290.

The previous prime is 65266237. The next prime is 65266319. The reversal of 65266291 is 19266256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65266291 - 2¹⁵ = 65233523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65266291.

It is not a weakly prime, because it can be changed into another prime (65266391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32633145 + 32633146.

It is an arithmetic number, because the mean of its divisors is an integer number (32633146).

Almost surely, 2^65266291 is an apocalyptic number.

65266291 is a deficient number, since it is larger than the sum of its proper divisors (1).

65266291 is an equidigital number, since it uses as much as digits as its factorization.

65266291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 65266291 is about 8078.7555353532. The cubic root of 65266291 is about 402.6208960037.

The spelling of 65266291 in words is "sixty-five million, two hundred sixty-six thousand, two hundred ninety-one".