56730983 has 4 divisors (see below), whose sum is σ = 56892048. Its totient is φ = 56569920.

The previous prime is 56730967. The next prime is 56731019. The reversal of 56730983 is 38903765.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56730983 - 2⁴ = 56730967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56730983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56730913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80003 + ... + 80708.

It is an arithmetic number, because the mean of its divisors is an integer number (14223012).

Almost surely, 2^56730983 is an apocalyptic number.

56730983 is a deficient number, since it is larger than the sum of its proper divisors (161065).

56730983 is a wasteful number, since it uses less digits than its factorization.

56730983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161064.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 56730983 is about 7531.9972782788. The cubic root of 56730983 is about 384.2437123880.

Adding to 56730983 its sum of digits (41), we get a square (56731024 = 7532²).

The spelling of 56730983 in words is "fifty-six million, seven hundred thirty thousand, nine hundred eighty-three".