65512423 has 2 divisors, whose sum is σ = 65512424. Its totient is φ = 65512422.

The previous prime is 65512417. The next prime is 65512453. The reversal of 65512423 is 32421556.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65512423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65512391 and 65512400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65512453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32756211 + 32756212.

It is an arithmetic number, because the mean of its divisors is an integer number (32756212).

Almost surely, 2^65512423 is an apocalyptic number.

65512423 is a deficient number, since it is larger than the sum of its proper divisors (1).

65512423 is an equidigital number, since it uses as much as digits as its factorization.

65512423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 28.

The square root of 65512423 is about 8093.9744872343. The cubic root of 65512423 is about 403.1263819274.

Adding to 65512423 its reverse (32421556), we get a palindrome (97933979).

The spelling of 65512423 in words is "sixty-five million, five hundred twelve thousand, four hundred twenty-three".