56655067405 has 4 divisors (see below), whose sum is σ = 67986080892. Its totient is φ = 45324053920.

The previous prime is 56655067387. The next prime is 56655067439. The reversal of 56655067405 is 50476055665.

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 21904888009 + 34750179396 = 148003^2 + 186414^2 .

It is not a de Polignac number, because 56655067405 - 2⁵ = 56655067373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5665506736 + ... + 5665506745.

It is an arithmetic number, because the mean of its divisors is an integer number (16996520223).

Almost surely, 2^56655067405 is an apocalyptic number.

It is an amenable number.

56655067405 is a deficient number, since it is larger than the sum of its proper divisors (11331013487).

56655067405 is a wasteful number, since it uses less digits than its factorization.

56655067405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11331013486.

The product of its (nonzero) digits is 3780000, while the sum is 49.

The spelling of 56655067405 in words is "fifty-six billion, six hundred fifty-five million, sixty-seven thousand, four hundred five".