56212278769 has 2 divisors, whose sum is σ = 56212278770. Its totient is φ = 56212278768.

The previous prime is 56212278763. The next prime is 56212278817. The reversal of 56212278769 is 96787221265.

56212278769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40215088369 + 15997190400 = 200537^2 + 126480^2 .

It is a cyclic number.

It is not a de Polignac number, because 56212278769 - 2¹⁵ = 56212246001 is a prime.

It is a super-2 number, since 2×56212278769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56212278763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28106139384 + 28106139385.

It is an arithmetic number, because the mean of its divisors is an integer number (28106139385).

Almost surely, 2^56212278769 is an apocalyptic number.

It is an amenable number.

56212278769 is a deficient number, since it is larger than the sum of its proper divisors (1).

56212278769 is an equidigital number, since it uses as much as digits as its factorization.

56212278769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 55.

The spelling of 56212278769 in words is "fifty-six billion, two hundred twelve million, two hundred seventy-eight thousand, seven hundred sixty-nine".