6601559 has 8 divisors (see below), whose sum is σ = 7021728. Its totient is φ = 6184960.

The previous prime is 6601549. The next prime is 6601561. The reversal of 6601559 is 9551066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6601559 - 2¹² = 6597463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6601519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3614 + ... + 5124.

It is an arithmetic number, because the mean of its divisors is an integer number (877716).

Almost surely, 2^6601559 is an apocalyptic number.

6601559 is a deficient number, since it is larger than the sum of its proper divisors (420169).

6601559 is a wasteful number, since it uses less digits than its factorization.

6601559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 6601559 is about 2569.3499177808. The cubic root of 6601559 is about 187.5925137530.

The spelling of 6601559 in words is "six million, six hundred one thousand, five hundred fifty-nine".