56217772543 has 2 divisors, whose sum is σ = 56217772544. Its totient is φ = 56217772542.

The previous prime is 56217772519. The next prime is 56217772553. The reversal of 56217772543 is 34527771265.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56217772543 - 2⁵ = 56217772511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56217772553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28108886271 + 28108886272.

It is an arithmetic number, because the mean of its divisors is an integer number (28108886272).

Almost surely, 2^56217772543 is an apocalyptic number.

56217772543 is a deficient number, since it is larger than the sum of its proper divisors (1).

56217772543 is an equidigital number, since it uses as much as digits as its factorization.

56217772543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469600, while the sum is 49.

The spelling of 56217772543 in words is "fifty-six billion, two hundred seventeen million, seven hundred seventy-two thousand, five hundred forty-three".