56433648709 has 2 divisors, whose sum is σ = 56433648710. Its totient is φ = 56433648708.

The previous prime is 56433648679. The next prime is 56433648731. The reversal of 56433648709 is 90784633465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50611500900 + 5822147809 = 224970^2 + 76303^2 .

It is a cyclic number.

It is not a de Polignac number, because 56433648709 - 2⁷ = 56433648581 is a prime.

It is a super-4 number, since 4×56433648709⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 56433648709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56433628709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28216824354 + 28216824355.

It is an arithmetic number, because the mean of its divisors is an integer number (28216824355).

Almost surely, 2^56433648709 is an apocalyptic number.

It is an amenable number.

56433648709 is a deficient number, since it is larger than the sum of its proper divisors (1).

56433648709 is an equidigital number, since it uses as much as digits as its factorization.

56433648709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 56433648709 in words is "fifty-six billion, four hundred thirty-three million, six hundred forty-eight thousand, seven hundred nine".