52161647 has 2 divisors, whose sum is σ = 52161648. Its totient is φ = 52161646.

The previous prime is 52161617. The next prime is 52161667. The reversal of 52161647 is 74616125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52161647 - 2⁶ = 52161583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52161617) 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, 26080823 + 26080824.

It is an arithmetic number, because the mean of its divisors is an integer number (26080824).

Almost surely, 2^52161647 is an apocalyptic number.

52161647 is a deficient number, since it is larger than the sum of its proper divisors (1).

52161647 is an equidigital number, since it uses as much as digits as its factorization.

52161647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 52161647 is about 7222.3020568237. The cubic root of 52161647 is about 373.6374779373.

The spelling of 52161647 in words is "fifty-two million, one hundred sixty-one thousand, six hundred forty-seven".