56103380209 has 4 divisors (see below), whose sum is σ = 56165237104. Its totient is φ = 56041523316.

The previous prime is 56103380149. The next prime is 56103380213. The reversal of 56103380209 is 90208330165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56103380209 - 2⁹ = 56103379697 is a prime.

It is a super-2 number, since 2×56103380209² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56103380009) 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, 30927087 + ... + 30928900.

It is an arithmetic number, because the mean of its divisors is an integer number (14041309276).

Almost surely, 2^56103380209 is an apocalyptic number.

It is an amenable number.

56103380209 is a deficient number, since it is larger than the sum of its proper divisors (61856895).

56103380209 is an equidigital number, since it uses as much as digits as its factorization.

56103380209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61856894.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 56103380209 in words is "fifty-six billion, one hundred three million, three hundred eighty thousand, two hundred nine".