56561435005 has 8 divisors (see below), whose sum is σ = 67879322424. Its totient is φ = 45245414400.

The previous prime is 56561434981. The next prime is 56561435009. The reversal of 56561435005 is 50053416565.

56561435005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10883914276 + 45677520729 = 104326^2 + 213723^2 .

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

It is not a de Polignac number, because 56561435005 - 2⁵ = 56561434973 is a prime.

It is a super-3 number, since 3×56561435005³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56561435009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399156 + ... + 521965.

It is an arithmetic number, because the mean of its divisors is an integer number (8484915303).

Almost surely, 2^56561435005 is an apocalyptic number.

It is an amenable number.

56561435005 is a deficient number, since it is larger than the sum of its proper divisors (11317887419).

56561435005 is a wasteful number, since it uses less digits than its factorization.

56561435005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933407.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 56561435005 in words is "fifty-six billion, five hundred sixty-one million, four hundred thirty-five thousand, five".