52697291 has 2 divisors, whose sum is σ = 52697292. Its totient is φ = 52697290.

The previous prime is 52697269. The next prime is 52697413. The reversal of 52697291 is 19279625.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52697291 is a prime.

It is not a weakly prime, because it can be changed into another prime (52697201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26348645 + 26348646.

It is an arithmetic number, because the mean of its divisors is an integer number (26348646).

Almost surely, 2^52697291 is an apocalyptic number.

52697291 is a deficient number, since it is larger than the sum of its proper divisors (1).

52697291 is an equidigital number, since it uses as much as digits as its factorization.

52697291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 41.

The square root of 52697291 is about 7259.2899790544. The cubic root of 52697291 is about 374.9120765721.

The spelling of 52697291 in words is "fifty-two million, six hundred ninety-seven thousand, two hundred ninety-one".