52640543 has 2 divisors, whose sum is σ = 52640544. Its totient is φ = 52640542.

The previous prime is 52640531. The next prime is 52640587. The reversal of 52640543 is 34504625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52640543 - 2⁶ = 52640479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52640503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26320271 + 26320272.

It is an arithmetic number, because the mean of its divisors is an integer number (26320272).

Almost surely, 2^52640543 is an apocalyptic number.

52640543 is a deficient number, since it is larger than the sum of its proper divisors (1).

52640543 is an equidigital number, since it uses as much as digits as its factorization.

52640543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 52640543 is about 7255.3802794891. The cubic root of 52640543 is about 374.7774513591. Note that the first 3 decimals are identical.

The spelling of 52640543 in words is "fifty-two million, six hundred forty thousand, five hundred forty-three".