56281471 has 2 divisors, whose sum is σ = 56281472. Its totient is φ = 56281470.

The previous prime is 56281429. The next prime is 56281481. The reversal of 56281471 is 17418265.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56281471 - 2⁷ = 56281343 is a prime.

It is a super-3 number, since 3×56281471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56281411) 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, 28140735 + 28140736.

It is an arithmetic number, because the mean of its divisors is an integer number (28140736).

Almost surely, 2^56281471 is an apocalyptic number.

56281471 is a deficient number, since it is larger than the sum of its proper divisors (1).

56281471 is an equidigital number, since it uses as much as digits as its factorization.

56281471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 34.

The square root of 56281471 is about 7502.0977732898. The cubic root of 56281471 is about 383.2261592425.

The spelling of 56281471 in words is "fifty-six million, two hundred eighty-one thousand, four hundred seventy-one".