56803432909 has 2 divisors, whose sum is σ = 56803432910. Its totient is φ = 56803432908.

The previous prime is 56803432853. The next prime is 56803432969. The reversal of 56803432909 is 90923430865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56645428009 + 158004900 = 238003^2 + 12570^2 .

It is a cyclic number.

It is not a de Polignac number, because 56803432909 - 2²⁷ = 56669215181 is a prime.

It is a super-3 number, since 3×56803432909³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56803432969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28401716454 + 28401716455.

It is an arithmetic number, because the mean of its divisors is an integer number (28401716455).

Almost surely, 2^56803432909 is an apocalyptic number.

It is an amenable number.

56803432909 is a deficient number, since it is larger than the sum of its proper divisors (1).

56803432909 is an equidigital number, since it uses as much as digits as its factorization.

56803432909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 56803432909 in words is "fifty-six billion, eight hundred three million, four hundred thirty-two thousand, nine hundred nine".