56211427 has 2 divisors, whose sum is σ = 56211428. Its totient is φ = 56211426.

The previous prime is 56211383. The next prime is 56211479. The reversal of 56211427 is 72411265.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56211427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56211395 and 56211404.

It is not a weakly prime, because it can be changed into another prime (56211497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28105713 + 28105714.

It is an arithmetic number, because the mean of its divisors is an integer number (28105714).

Almost surely, 2^56211427 is an apocalyptic number.

56211427 is a deficient number, since it is larger than the sum of its proper divisors (1).

56211427 is an equidigital number, since it uses as much as digits as its factorization.

56211427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 56211427 is about 7497.4280256632. The cubic root of 56211427 is about 383.0671143808.

The spelling of 56211427 in words is "fifty-six million, two hundred eleven thousand, four hundred twenty-seven".