56005489705 has 8 divisors (see below), whose sum is σ = 73316277504. Its totient is φ = 40731265200.

The previous prime is 56005489679. The next prime is 56005489717. The reversal of 56005489705 is 50798450065.

56005489705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56005489705 - 2⁷ = 56005489577 is a prime.

It is a super-2 number, since 2×56005489705² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509140761 + ... + 509140870.

It is an arithmetic number, because the mean of its divisors is an integer number (9164534688).

Almost surely, 2^56005489705 is an apocalyptic number.

56005489705 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56005489705 is a deficient number, since it is larger than the sum of its proper divisors (17310787799).

56005489705 is a wasteful number, since it uses less digits than its factorization.

56005489705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018281647.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 56005489705 in words is "fifty-six billion, five million, four hundred eighty-nine thousand, seven hundred five".