56543593 has 2 divisors, whose sum is σ = 56543594. Its totient is φ = 56543592.

The previous prime is 56543587. The next prime is 56543621. The reversal of 56543593 is 39534565.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53626329 + 2917264 = 7323^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 56543593 - 2⁵ = 56543561 is a prime.

It is not a weakly prime, because it can be changed into another prime (56543503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28271796 + 28271797.

It is an arithmetic number, because the mean of its divisors is an integer number (28271797).

Almost surely, 2^56543593 is an apocalyptic number.

It is an amenable number.

56543593 is a deficient number, since it is larger than the sum of its proper divisors (1).

56543593 is an equidigital number, since it uses as much as digits as its factorization.

56543593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243000, while the sum is 40.

The square root of 56543593 is about 7519.5473932944. The cubic root of 56543593 is about 383.8201763104.

Subtracting from 56543593 its reverse (39534565), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 56543593 in words is "fifty-six million, five hundred forty-three thousand, five hundred ninety-three".