56185543 has 2 divisors, whose sum is σ = 56185544. Its totient is φ = 56185542.

The previous prime is 56185537. The next prime is 56185559. The reversal of 56185543 is 34558165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56185543 - 2¹³ = 56177351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56185583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28092771 + 28092772.

It is an arithmetic number, because the mean of its divisors is an integer number (28092772).

Almost surely, 2^56185543 is an apocalyptic number.

56185543 is a deficient number, since it is larger than the sum of its proper divisors (1).

56185543 is an equidigital number, since it uses as much as digits as its factorization.

56185543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 37.

The square root of 56185543 is about 7495.7016349372. The cubic root of 56185543 is about 383.0083076457.

The spelling of 56185543 in words is "fifty-six million, one hundred eighty-five thousand, five hundred forty-three".