5996561 has 2 divisors, whose sum is σ = 5996562. Its totient is φ = 5996560.

The previous prime is 5996539. The next prime is 5996587. The reversal of 5996561 is 1656995.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5612161 + 384400 = 2369^2 + 620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5996561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5996521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2998280 + 2998281.

It is an arithmetic number, because the mean of its divisors is an integer number (2998281).

Almost surely, 2^5996561 is an apocalyptic number.

It is an amenable number.

5996561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5996561 is an equidigital number, since it uses as much as digits as its factorization.

5996561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 41.

The square root of 5996561 is about 2448.7876592306. The cubic root of 5996561 is about 181.6773355498.

The spelling of 5996561 in words is "five million, nine hundred ninety-six thousand, five hundred sixty-one".