56891043 has 12 divisors (see below), whose sum is σ = 89646648. Its totient is φ = 34479360.

The previous prime is 56891041. The next prime is 56891053. The reversal of 56891043 is 34019865.

56891043 is a `hidden beast` number, since 568 + 91 + 0 + 4 + 3 = 666.

It is not a de Polignac number, because 56891043 - 2¹ = 56891041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56890989 and 56891007.

It is not an unprimeable number, because it can be changed into a prime (56891041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287230 + ... + 287427.

It is an arithmetic number, because the mean of its divisors is an integer number (7470554).

Almost surely, 2^56891043 is an apocalyptic number.

56891043 is a deficient number, since it is larger than the sum of its proper divisors (32755605).

56891043 is a wasteful number, since it uses less digits than its factorization.

56891043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574674 (or 574671 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 56891043 is about 7542.6151300461. The cubic root of 56891043 is about 384.6047396756.

The spelling of 56891043 in words is "fifty-six million, eight hundred ninety-one thousand, forty-three".