65442497 has 2 divisors, whose sum is σ = 65442498. Its totient is φ = 65442496.

The previous prime is 65442493. The next prime is 65442523. The reversal of 65442497 is 79424456.

65442497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46117681 + 19324816 = 6791^2 + 4396^2 .

It is a cyclic number.

It is not a de Polignac number, because 65442497 - 2² = 65442493 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65442493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32721248 + 32721249.

It is an arithmetic number, because the mean of its divisors is an integer number (32721249).

Almost surely, 2^65442497 is an apocalyptic number.

It is an amenable number.

65442497 is a deficient number, since it is larger than the sum of its proper divisors (1).

65442497 is an equidigital number, since it uses as much as digits as its factorization.

65442497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 65442497 is about 8089.6537008700. The cubic root of 65442497 is about 402.9829025210.

The spelling of 65442497 in words is "sixty-five million, four hundred forty-two thousand, four hundred ninety-seven".