56578181347 has 2 divisors, whose sum is σ = 56578181348. Its totient is φ = 56578181346.

The previous prime is 56578181333. The next prime is 56578181351. The reversal of 56578181347 is 74318187565.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56578181347 is a prime.

It is a super-3 number, since 3×56578181347³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (56578181327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28289090673 + 28289090674.

It is an arithmetic number, because the mean of its divisors is an integer number (28289090674).

Almost surely, 2^56578181347 is an apocalyptic number.

56578181347 is a deficient number, since it is larger than the sum of its proper divisors (1).

56578181347 is an equidigital number, since it uses as much as digits as its factorization.

56578181347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5644800, while the sum is 55.

The spelling of 56578181347 in words is "fifty-six billion, five hundred seventy-eight million, one hundred eighty-one thousand, three hundred forty-seven".