56668523293 has 8 divisors (see below), whose sum is σ = 57449010816. Its totient is φ = 55888149600.

The previous prime is 56668523273. The next prime is 56668523339. The reversal of 56668523293 is 39232586665.

It is a happy number.

56668523293 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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56668523293 is a prime.

It is a super-2 number, since 2×56668523293² (a number of 22 digits) contains 22 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 (56668523273) 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, 1648188 + ... + 1682218.

It is an arithmetic number, because the mean of its divisors is an integer number (7181126352).

Almost surely, 2^56668523293 is an apocalyptic number.

It is an amenable number.

56668523293 is a deficient number, since it is larger than the sum of its proper divisors (780487523).

56668523293 is a wasteful number, since it uses less digits than its factorization.

56668523293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56915.

The product of its digits is 13996800, while the sum is 55.

The spelling of 56668523293 in words is "fifty-six billion, six hundred sixty-eight million, five hundred twenty-three thousand, two hundred ninety-three".