56043983 has 2 divisors, whose sum is σ = 56043984. Its totient is φ = 56043982.

The previous prime is 56043971. The next prime is 56043997. The reversal of 56043983 is 38934065.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56043983 - 2¹⁸ = 55781839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56043913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28021991 + 28021992.

It is an arithmetic number, because the mean of its divisors is an integer number (28021992).

Almost surely, 2^56043983 is an apocalyptic number.

56043983 is a deficient number, since it is larger than the sum of its proper divisors (1).

56043983 is an equidigital number, since it uses as much as digits as its factorization.

56043983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 56043983 is about 7486.2529345461. The cubic root of 56043983 is about 382.6863727861.

The spelling of 56043983 in words is "fifty-six million, forty-three thousand, nine hundred eighty-three".