6557859 has 24 divisors (see below), whose sum is σ = 11811072. Its totient is φ = 3406320.

The previous prime is 6557839. The next prime is 6557861. The reversal of 6557859 is 9587556.

It is not a de Polignac number, because 6557859 - 2⁷ = 6557731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6557819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4039 + ... + 5424.

It is an arithmetic number, because the mean of its divisors is an integer number (492128).

Almost surely, 2^6557859 is an apocalyptic number.

6557859 is a deficient number, since it is larger than the sum of its proper divisors (5253213).

6557859 is a wasteful number, since it uses less digits than its factorization.

6557859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487 (or 9484 counting only the distinct ones).

The product of its digits is 378000, while the sum is 45.

The square root of 6557859 is about 2560.8317008347. The cubic root of 6557859 is about 187.1776648512.

The spelling of 6557859 in words is "six million, five hundred fifty-seven thousand, eight hundred fifty-nine".