52947929 has 2 divisors, whose sum is σ = 52947930. Its totient is φ = 52947928.

The previous prime is 52947899. The next prime is 52947931. The reversal of 52947929 is 92974925.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32035600 + 20912329 = 5660^2 + 4573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52947929 is a prime.

Together with 52947931, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52947989) 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, 26473964 + 26473965.

It is an arithmetic number, because the mean of its divisors is an integer number (26473965).

Almost surely, 2^52947929 is an apocalyptic number.

It is an amenable number.

52947929 is a deficient number, since it is larger than the sum of its proper divisors (1).

52947929 is an equidigital number, since it uses as much as digits as its factorization.

52947929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 52947929 is about 7276.5327594947. The cubic root of 52947929 is about 375.5055202991.

The spelling of 52947929 in words is "fifty-two million, nine hundred forty-seven thousand, nine hundred twenty-nine".