65465573 has 2 divisors, whose sum is σ = 65465574. Its totient is φ = 65465572.

The previous prime is 65465563. The next prime is 65465593. The reversal of 65465573 is 37556456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57501889 + 7963684 = 7583^2 + 2822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65465573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65465573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65465513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32732786 + 32732787.

It is an arithmetic number, because the mean of its divisors is an integer number (32732787).

Almost surely, 2^65465573 is an apocalyptic number.

It is an amenable number.

65465573 is a deficient number, since it is larger than the sum of its proper divisors (1).

65465573 is an equidigital number, since it uses as much as digits as its factorization.

65465573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 41.

The square root of 65465573 is about 8091.0798414056. The cubic root of 65465573 is about 403.0302628810.

The spelling of 65465573 in words is "sixty-five million, four hundred sixty-five thousand, five hundred seventy-three".