56840435005 has 4 divisors (see below), whose sum is σ = 68208522012. Its totient is φ = 45472348000.

The previous prime is 56840434943. The next prime is 56840435009. The reversal of 56840435005 is 50053404865.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8228122681 + 48612312324 = 90709^2 + 220482^2 .

It is not a de Polignac number, because 56840435005 - 2⁷ = 56840434877 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56840435009) 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, 5684043496 + ... + 5684043505.

It is an arithmetic number, because the mean of its divisors is an integer number (17052130503).

Almost surely, 2^56840435005 is an apocalyptic number.

It is an amenable number.

56840435005 is a deficient number, since it is larger than the sum of its proper divisors (11368087007).

56840435005 is a wasteful number, since it uses less digits than its factorization.

56840435005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11368087006.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 56840435005 in words is "fifty-six billion, eight hundred forty million, four hundred thirty-five thousand, five".