56256711268243 has 2 divisors, whose sum is σ = 56256711268244. Its totient is φ = 56256711268242.

The previous prime is 56256711268231. The next prime is 56256711268259. The reversal of 56256711268243 is 34286211765265.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56256711268243 - 2¹³ = 56256711260051 is a prime.

It is not a weakly prime, because it can be changed into another prime (56256711268273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28128355634121 + 28128355634122.

It is an arithmetic number, because the mean of its divisors is an integer number (28128355634122).

Almost surely, 2^{56256711268243} is an apocalyptic number.

56256711268243 is a deficient number, since it is larger than the sum of its proper divisors (1).

56256711268243 is an equidigital number, since it uses as much as digits as its factorization.

56256711268243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29030400, while the sum is 58.

The spelling of 56256711268243 in words is "fifty-six trillion, two hundred fifty-six billion, seven hundred eleven million, two hundred sixty-eight thousand, two hundred forty-three".