56831473 has 2 divisors, whose sum is σ = 56831474. Its totient is φ = 56831472.

The previous prime is 56831471. The next prime is 56831483. The reversal of 56831473 is 37413865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31550689 + 25280784 = 5617^2 + 5028^2 .

It is a cyclic number.

It is not a de Polignac number, because 56831473 - 2¹ = 56831471 is a prime.

Together with 56831471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56831471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28415736 + 28415737.

It is an arithmetic number, because the mean of its divisors is an integer number (28415737).

Almost surely, 2^56831473 is an apocalyptic number.

It is an amenable number.

56831473 is a deficient number, since it is larger than the sum of its proper divisors (1).

56831473 is an equidigital number, since it uses as much as digits as its factorization.

56831473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 56831473 is about 7538.6652001531. The cubic root of 56831473 is about 384.4704542980.

It can be divided in two parts, 568 and 31473, that added together give a square (32041 = 179²).

The spelling of 56831473 in words is "fifty-six million, eight hundred thirty-one thousand, four hundred seventy-three".