56682086401 has 4 divisors (see below), whose sum is σ = 57458553412. Its totient is φ = 55905619392.

The previous prime is 56682086389. The next prime is 56682086459. The reversal of 56682086401 is 10468028665.

It is a Cunningham number, because it is equal to 238080²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10468028665 = 5 ⋅2093605733.

It can be written as a sum of positive squares in 2 ways, for example, as 32175749376 + 24506337025 = 179376^2 + 156545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56682086401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56682066401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388233396 + ... + 388233541.

It is an arithmetic number, because the mean of its divisors is an integer number (14364638353).

It is a Proth number, since it is equal to 216225 ⋅ 2¹⁸ + 1 and 216225 < 2¹⁸.

Almost surely, 2^56682086401 is an apocalyptic number.

It is an amenable number.

56682086401 is a deficient number, since it is larger than the sum of its proper divisors (776467011).

56682086401 is an equidigital number, since it uses as much as digits as its factorization.

56682086401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776467010.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 56682086401 in words is "fifty-six billion, six hundred eighty-two million, eighty-six thousand, four hundred one".