65523713 has 2 divisors, whose sum is σ = 65523714. Its totient is φ = 65523712.

The previous prime is 65523709. The next prime is 65523719. The reversal of 65523713 is 31732556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63473089 + 2050624 = 7967^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 65523713 - 2² = 65523709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65523713.

It is not a weakly prime, because it can be changed into another prime (65523719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32761856 + 32761857.

It is an arithmetic number, because the mean of its divisors is an integer number (32761857).

Almost surely, 2^65523713 is an apocalyptic number.

It is an amenable number.

65523713 is a deficient number, since it is larger than the sum of its proper divisors (1).

65523713 is an equidigital number, since it uses as much as digits as its factorization.

65523713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 32.

The square root of 65523713 is about 8094.6718895827. The cubic root of 65523713 is about 403.1495380212.

The spelling of 65523713 in words is "sixty-five million, five hundred twenty-three thousand, seven hundred thirteen".