64125563 has 2 divisors, whose sum is σ = 64125564. Its totient is φ = 64125562.

The previous prime is 64125511. The next prime is 64125569. The reversal of 64125563 is 36552146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64125563 - 2¹⁴ = 64109179 is a prime.

It is a super-2 number, since 2×64125563² = 8224175660133938, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (64125569) 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, 32062781 + 32062782.

It is an arithmetic number, because the mean of its divisors is an integer number (32062782).

Almost surely, 2^64125563 is an apocalyptic number.

64125563 is a deficient number, since it is larger than the sum of its proper divisors (1).

64125563 is an equidigital number, since it uses as much as digits as its factorization.

64125563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 64125563 is about 8007.8438421338. The cubic root of 64125563 is about 400.2614186968.

The spelling of 64125563 in words is "sixty-four million, one hundred twenty-five thousand, five hundred sixty-three".