56655169505 has 8 divisors (see below), whose sum is σ = 74166767424. Its totient is φ = 41203759600.

The previous prime is 56655169499. The next prime is 56655169507. The reversal of 56655169505 is 50596155665.

56655169505 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 a de Polignac number, because none of the positive numbers 2^k-56655169505 is a prime.

It is a super-3 number, since 3×56655169505³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56655169507) 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, 515046941 + ... + 515047050.

It is an arithmetic number, because the mean of its divisors is an integer number (9270845928).

Almost surely, 2^56655169505 is an apocalyptic number.

56655169505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56655169505 is a deficient number, since it is larger than the sum of its proper divisors (17511597919).

56655169505 is a wasteful number, since it uses less digits than its factorization.

56655169505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030094007.

The product of its (nonzero) digits is 6075000, while the sum is 53.

It can be divided in two parts, 566551 and 69505, that added together give a cube (636056 = 86³).

The spelling of 56655169505 in words is "fifty-six billion, six hundred fifty-five million, one hundred sixty-nine thousand, five hundred five".