5601566 has 4 divisors (see below), whose sum is σ = 8402352. Its totient is φ = 2800782.

The previous prime is 5601527. The next prime is 5601593. The reversal of 5601566 is 6651065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6651065 = 5 ⋅1330213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400390 + ... + 1400393.

It is an arithmetic number, because the mean of its divisors is an integer number (2100588).

Almost surely, 2^5601566 is an apocalyptic number.

5601566 is a deficient number, since it is larger than the sum of its proper divisors (2800786).

5601566 is a wasteful number, since it uses less digits than its factorization.

5601566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800785.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 5601566 is about 2366.7627680019. The cubic root of 5601566 is about 177.5973518732.

The spelling of 5601566 in words is "five million, six hundred one thousand, five hundred sixty-six".