56052989 has 2 divisors, whose sum is σ = 56052990. Its totient is φ = 56052988.

The previous prime is 56052973. The next prime is 56053003. The reversal of 56052989 is 98925065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53772889 + 2280100 = 7333^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 56052989 - 2⁴ = 56052973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56052089) 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, 28026494 + 28026495.

It is an arithmetic number, because the mean of its divisors is an integer number (28026495).

Almost surely, 2^56052989 is an apocalyptic number.

It is an amenable number.

56052989 is a deficient number, since it is larger than the sum of its proper divisors (1).

56052989 is an equidigital number, since it uses as much as digits as its factorization.

56052989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 56052989 is about 7486.8544129027. The cubic root of 56052989 is about 382.7068703114.

The spelling of 56052989 in words is "fifty-six million, fifty-two thousand, nine hundred eighty-nine".