65712523 has 2 divisors, whose sum is σ = 65712524. Its totient is φ = 65712522.

The previous prime is 65712473. The next prime is 65712539. The reversal of 65712523 is 32521756.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65712523 is a prime.

It is not a weakly prime, because it can be changed into another prime (65712623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32856261 + 32856262.

It is an arithmetic number, because the mean of its divisors is an integer number (32856262).

Almost surely, 2^65712523 is an apocalyptic number.

65712523 is a deficient number, since it is larger than the sum of its proper divisors (1).

65712523 is an equidigital number, since it uses as much as digits as its factorization.

65712523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 31.

The square root of 65712523 is about 8106.3261098971. The cubic root of 65712523 is about 403.5363988197.

The spelling of 65712523 in words is "sixty-five million, seven hundred twelve thousand, five hundred twenty-three".