56487841 has 2 divisors, whose sum is σ = 56487842. Its totient is φ = 56487840.

The previous prime is 56487811. The next prime is 56487883. The reversal of 56487841 is 14878465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30691600 + 25796241 = 5540^2 + 5079^2 .

It is a cyclic number.

It is not a de Polignac number, because 56487841 - 2⁹ = 56487329 is a prime.

It is not a weakly prime, because it can be changed into another prime (56487811) 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, 28243920 + 28243921.

It is an arithmetic number, because the mean of its divisors is an integer number (28243921).

Almost surely, 2^56487841 is an apocalyptic number.

It is an amenable number.

56487841 is a deficient number, since it is larger than the sum of its proper divisors (1).

56487841 is an equidigital number, since it uses as much as digits as its factorization.

56487841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 43.

The square root of 56487841 is about 7515.8393410184. The cubic root of 56487841 is about 383.6939858897.

It can be divided in two parts, 5 and 6487841, that added together give a palindrome (6487846).

The spelling of 56487841 in words is "fifty-six million, four hundred eighty-seven thousand, eight hundred forty-one".