64256323 has 2 divisors, whose sum is σ = 64256324. Its totient is φ = 64256322.

The previous prime is 64256321. The next prime is 64256327. The reversal of 64256323 is 32365246.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64256323 - 2¹ = 64256321 is a prime.

Together with 64256321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64256321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32128161 + 32128162.

It is an arithmetic number, because the mean of its divisors is an integer number (32128162).

Almost surely, 2^64256323 is an apocalyptic number.

64256323 is a deficient number, since it is larger than the sum of its proper divisors (1).

64256323 is an equidigital number, since it uses as much as digits as its factorization.

64256323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

The square root of 64256323 is about 8016.0041791406. The cubic root of 64256323 is about 400.5332949253.

It can be divided in two parts, 642 and 56323, that added together give a palindrome (56965).

The spelling of 64256323 in words is "sixty-four million, two hundred fifty-six thousand, three hundred twenty-three".