5865561 has 32 divisors (see below), whose sum is σ = 9918720. Its totient is φ = 3393792.

The previous prime is 5865551. The next prime is 5865571. The reversal of 5865561 is 1655685.

It is an interprime number because it is at equal distance from previous prime (5865551) and next prime (5865571).

It is not a de Polignac number, because 5865561 - 2¹¹ = 5863513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5865551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5476 + ... + 6458.

It is an arithmetic number, because the mean of its divisors is an integer number (309960).

Almost surely, 2^5865561 is an apocalyptic number.

5865561 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5865561 is a deficient number, since it is larger than the sum of its proper divisors (4053159).

5865561 is a wasteful number, since it uses less digits than its factorization.

5865561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 1016 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 5865561 is about 2421.8920289724. The cubic root of 5865561 is about 180.3446175719.

The spelling of 5865561 in words is "five million, eight hundred sixty-five thousand, five hundred sixty-one".