5561599 has 2 divisors, whose sum is σ = 5561600. Its totient is φ = 5561598.

The previous prime is 5561597. The next prime is 5561627. The reversal of 5561599 is 9951655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5561599 - 2¹ = 5561597 is a prime.

It is a super-4 number, since 4×5561599⁴ (a number of 28 digits) contains 4444 as substring.

Together with 5561597, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5561593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780799 + 2780800.

It is an arithmetic number, because the mean of its divisors is an integer number (2780800).

Almost surely, 2^5561599 is an apocalyptic number.

5561599 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561599 is an equidigital number, since it uses as much as digits as its factorization.

5561599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60750, while the sum is 40.

The square root of 5561599 is about 2358.3042636606. The cubic root of 5561599 is about 177.1739594377.

The spelling of 5561599 in words is "five million, five hundred sixty-one thousand, five hundred ninety-nine".