56831543 has 2 divisors, whose sum is σ = 56831544. Its totient is φ = 56831542.

The previous prime is 56831539. The next prime is 56831549. The reversal of 56831543 is 34513865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56831543 - 2² = 56831539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56831549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28415771 + 28415772.

It is an arithmetic number, because the mean of its divisors is an integer number (28415772).

Almost surely, 2^56831543 is an apocalyptic number.

56831543 is a deficient number, since it is larger than the sum of its proper divisors (1).

56831543 is an equidigital number, since it uses as much as digits as its factorization.

56831543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 56831543 is about 7538.6698428834. The cubic root of 56831543 is about 384.4706121502.

The spelling of 56831543 in words is "fifty-six million, eight hundred thirty-one thousand, five hundred forty-three".