65422457 has 2 divisors, whose sum is σ = 65422458. Its totient is φ = 65422456.

The previous prime is 65422451. The next prime is 65422501. The reversal of 65422457 is 75422456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36735721 + 28686736 = 6061^2 + 5356^2 .

It is a cyclic number.

It is not a de Polignac number, because 65422457 - 2¹² = 65418361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65422451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32711228 + 32711229.

It is an arithmetic number, because the mean of its divisors is an integer number (32711229).

Almost surely, 2^65422457 is an apocalyptic number.

It is an amenable number.

65422457 is a deficient number, since it is larger than the sum of its proper divisors (1).

65422457 is an equidigital number, since it uses as much as digits as its factorization.

65422457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 35.

The square root of 65422457 is about 8088.4149868809. The cubic root of 65422457 is about 402.9417641058.

Subtracting 65422457 from its reverse (75422456), we obtain a palindrome (9999999).

The spelling of 65422457 in words is "sixty-five million, four hundred twenty-two thousand, four hundred fifty-seven".