56565853 has 2 divisors, whose sum is σ = 56565854. Its totient is φ = 56565852.

The previous prime is 56565811. The next prime is 56565923. The reversal of 56565853 is 35856565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30891364 + 25674489 = 5558^2 + 5067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56565853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56505853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28282926 + 28282927.

It is an arithmetic number, because the mean of its divisors is an integer number (28282927).

Almost surely, 2^56565853 is an apocalyptic number.

It is an amenable number.

56565853 is a deficient number, since it is larger than the sum of its proper divisors (1).

56565853 is an equidigital number, since it uses as much as digits as its factorization.

56565853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540000, while the sum is 43.

The square root of 56565853 is about 7521.0273899249. The cubic root of 56565853 is about 383.8705369599.

The spelling of 56565853 in words is "fifty-six million, five hundred sixty-five thousand, eight hundred fifty-three".