56561033 has 2 divisors, whose sum is σ = 56561034. Its totient is φ = 56561032.

The previous prime is 56561027. The next prime is 56561041. The reversal of 56561033 is 33016565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56370064 + 190969 = 7508^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 56561033 - 2¹² = 56556937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56560987 and 56561005.

It is not a weakly prime, because it can be changed into another prime (56561003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28280516 + 28280517.

It is an arithmetic number, because the mean of its divisors is an integer number (28280517).

Almost surely, 2^56561033 is an apocalyptic number.

It is an amenable number.

56561033 is a deficient number, since it is larger than the sum of its proper divisors (1).

56561033 is an equidigital number, since it uses as much as digits as its factorization.

56561033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 56561033 is about 7520.7069481532. The cubic root of 56561033 is about 383.8596333938.

Adding to 56561033 its reverse (33016565), we get a palindrome (89577598).

The spelling of 56561033 in words is "fifty-six million, five hundred sixty-one thousand, thirty-three".