65605259 has 2 divisors, whose sum is σ = 65605260. Its totient is φ = 65605258.

The previous prime is 65605237. The next prime is 65605273. The reversal of 65605259 is 95250656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65605259 - 2⁸ = 65605003 is a prime.

It is not a weakly prime, because it can be changed into another prime (65605559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32802629 + 32802630.

It is an arithmetic number, because the mean of its divisors is an integer number (32802630).

Almost surely, 2^65605259 is an apocalyptic number.

65605259 is a deficient number, since it is larger than the sum of its proper divisors (1).

65605259 is an equidigital number, since it uses as much as digits as its factorization.

65605259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 65605259 is about 8099.7073403920. The cubic root of 65605259 is about 403.3167121231.

The spelling of 65605259 in words is "sixty-five million, six hundred five thousand, two hundred fifty-nine".