52640443 has 2 divisors, whose sum is σ = 52640444. Its totient is φ = 52640442.

The previous prime is 52640437. The next prime is 52640453. The reversal of 52640443 is 34404625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52640443 - 2¹⁷ = 52509371 is a prime.

It is not a weakly prime, because it can be changed into another prime (52640453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26320221 + 26320222.

It is an arithmetic number, because the mean of its divisors is an integer number (26320222).

Almost surely, 2^52640443 is an apocalyptic number.

52640443 is a deficient number, since it is larger than the sum of its proper divisors (1).

52640443 is an equidigital number, since it uses as much as digits as its factorization.

52640443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 52640443 is about 7255.3733880483. The cubic root of 52640443 is about 374.7772140404. Note that the first 3 decimals are identical.

The spelling of 52640443 in words is "fifty-two million, six hundred forty thousand, four hundred forty-three".