56560016501 has 2 divisors, whose sum is σ = 56560016502. Its totient is φ = 56560016500.

The previous prime is 56560016437. The next prime is 56560016561. The reversal of 56560016501 is 10561006565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31461535876 + 25098480625 = 177374^2 + 158425^2 .

It is a cyclic number.

It is not a de Polignac number, because 56560016501 - 2⁶ = 56560016437 is a prime.

It is a super-3 number, since 3×56560016501³ (a number of 33 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56560016561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28280008250 + 28280008251.

It is an arithmetic number, because the mean of its divisors is an integer number (28280008251).

Almost surely, 2^56560016501 is an apocalyptic number.

It is an amenable number.

56560016501 is a deficient number, since it is larger than the sum of its proper divisors (1).

56560016501 is an equidigital number, since it uses as much as digits as its factorization.

56560016501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 56560016501 in words is "fifty-six billion, five hundred sixty million, sixteen thousand, five hundred one".