56802973 has 2 divisors, whose sum is σ = 56802974. Its totient is φ = 56802972.

The previous prime is 56802971. The next prime is 56802997. The reversal of 56802973 is 37920865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55980324 + 822649 = 7482^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 56802973 - 2¹ = 56802971 is a prime.

Together with 56802971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56802971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28401486 + 28401487.

It is an arithmetic number, because the mean of its divisors is an integer number (28401487).

Almost surely, 2^56802973 is an apocalyptic number.

It is an amenable number.

56802973 is a deficient number, since it is larger than the sum of its proper divisors (1).

56802973 is an equidigital number, since it uses as much as digits as its factorization.

56802973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 56802973 is about 7536.7747080565. The cubic root of 56802973 is about 384.4061751258.

It can be divided in two parts, 56802 and 973, that added together give a palindrome (57775).

The spelling of 56802973 in words is "fifty-six million, eight hundred two thousand, nine hundred seventy-three".