52688591 has 2 divisors, whose sum is σ = 52688592. Its totient is φ = 52688590.

The previous prime is 52688543. The next prime is 52688651. The reversal of 52688591 is 19588625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52688591 - 2⁶ = 52688527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52688521) 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, 26344295 + 26344296.

It is an arithmetic number, because the mean of its divisors is an integer number (26344296).

Almost surely, 2^52688591 is an apocalyptic number.

52688591 is a deficient number, since it is larger than the sum of its proper divisors (1).

52688591 is an equidigital number, since it uses as much as digits as its factorization.

52688591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 44.

The square root of 52688591 is about 7258.6907221620. The cubic root of 52688591 is about 374.8914435406.

The spelling of 52688591 in words is "fifty-two million, six hundred eighty-eight thousand, five hundred ninety-one".