56143389209 has 8 divisors (see below), whose sum is σ = 56245365792. Its totient is φ = 56041501120.

The previous prime is 56143389193. The next prime is 56143389217. The reversal of 56143389209 is 90298334165.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56143389209 - 2⁴ = 56143389193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56143389409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320842 + ... + 1362684.

It is an arithmetic number, because the mean of its divisors is an integer number (7030670724).

Almost surely, 2^56143389209 is an apocalyptic number.

It is an amenable number.

56143389209 is a deficient number, since it is larger than the sum of its proper divisors (101976583).

56143389209 is a wasteful number, since it uses less digits than its factorization.

56143389209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44247.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 56143389209 in words is "fifty-six billion, one hundred forty-three million, three hundred eighty-nine thousand, two hundred nine".