6158556 has 72 divisors (see below), whose sum is σ = 17100720. Its totient is φ = 1860096.

The previous prime is 6158543. The next prime is 6158557. The reversal of 6158556 is 6558516.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 6158556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6158557) 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, 17575 + ... + 17921.

It is an arithmetic number, because the mean of its divisors is an integer number (237510).

Almost surely, 2^6158556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6158556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8550360).

6158556 is an abundant number, since it is smaller than the sum of its proper divisors (10942164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6158556 is a wasteful number, since it uses less digits than its factorization.

6158556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 398 counting only the distinct ones).

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

The square root of 6158556 is about 2481.6438100582. The cubic root of 6158556 is about 183.2988041491.

The spelling of 6158556 in words is "six million, one hundred fifty-eight thousand, five hundred fifty-six".