56881843 has 2 divisors, whose sum is σ = 56881844. Its totient is φ = 56881842.

The previous prime is 56881837. The next prime is 56881873. The reversal of 56881843 is 34818865.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56881843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56881843.

It is not a weakly prime, because it can be changed into another prime (56881873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28440921 + 28440922.

It is an arithmetic number, because the mean of its divisors is an integer number (28440922).

Almost surely, 2^56881843 is an apocalyptic number.

56881843 is a deficient number, since it is larger than the sum of its proper divisors (1).

56881843 is an equidigital number, since it uses as much as digits as its factorization.

56881843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 43.

The square root of 56881843 is about 7542.0052373358. The cubic root of 56881843 is about 384.5840067438.

The spelling of 56881843 in words is "fifty-six million, eight hundred eighty-one thousand, eight hundred forty-three".