56721706522352 has 20 divisors (see below), whose sum is σ = 110251677156816. Its totient is φ = 28269660804480.

The previous prime is 56721706522333. The next prime is 56721706522361. The reversal of 56721706522352 is 25322560712765.

56721706522352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56721706522352² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56721706522294 and 56721706522303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5699523413 + ... + 5699533364.

Almost surely, 2^{56721706522352} is an apocalyptic number.

It is an amenable number.

56721706522352 is a deficient number, since it is larger than the sum of its proper divisors (53529970634464).

56721706522352 is a wasteful number, since it uses less digits than its factorization.

56721706522352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11399057096 (or 11399057090 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 56721706522352 in words is "fifty-six trillion, seven hundred twenty-one billion, seven hundred six million, five hundred twenty-two thousand, three hundred fifty-two".