56817538027 has 2 divisors, whose sum is σ = 56817538028. Its totient is φ = 56817538026.

The previous prime is 56817537983. The next prime is 56817538061. The reversal of 56817538027 is 72083571865.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56817538027 - 2¹¹ = 56817535979 is a prime.

It is not a weakly prime, because it can be changed into another prime (56817538067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28408769013 + 28408769014.

It is an arithmetic number, because the mean of its divisors is an integer number (28408769014).

Almost surely, 2^56817538027 is an apocalyptic number.

56817538027 is a deficient number, since it is larger than the sum of its proper divisors (1).

56817538027 is an equidigital number, since it uses as much as digits as its factorization.

56817538027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 56817538027 in words is "fifty-six billion, eight hundred seventeen million, five hundred thirty-eight thousand, twenty-seven".