56617726043 has 4 divisors (see below), whose sum is σ = 57822358560. Its totient is φ = 55413093528.

The previous prime is 56617726021. The next prime is 56617726069. The reversal of 56617726043 is 34062771665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56617726043 - 2¹² = 56617721947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 1204632469 = 56617726043 / (5 + 6 + 6 + 1 + 7 + 7 + 2 + 6 + 0 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56617726843) 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, 602316188 + ... + 602316281.

It is an arithmetic number, because the mean of its divisors is an integer number (14455589640).

Almost surely, 2^56617726043 is an apocalyptic number.

56617726043 is a deficient number, since it is larger than the sum of its proper divisors (1204632517).

56617726043 is a wasteful number, since it uses less digits than its factorization.

56617726043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204632516.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 56617726043 in words is "fifty-six billion, six hundred seventeen million, seven hundred twenty-six thousand, forty-three".