2556596 has 48 divisors (see below), whose sum is σ = 5588352. Its totient is φ = 998400.

The previous prime is 2556577. The next prime is 2556607. The reversal of 2556596 is 6956552.

Its product of digits (81000) is a multiple of the sum of its prime factors (200).

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19451 + ... + 19581.

It is an arithmetic number, because the mean of its divisors is an integer number (116424).

2^2556596 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 2556596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2794176).

2556596 is an abundant number, since it is smaller than the sum of its proper divisors (3031756).

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

2556596 is a wasteful number, since it uses less digits than its factorization.

2556596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 198 counting only the distinct ones).

The product of its digits is 81000, while the sum is 38.

The square root of 2556596 is about 1598.9358961509. The cubic root of 2556596 is about 136.7374159429.

The spelling of 2556596 in words is "two million, five hundred fifty-six thousand, five hundred ninety-six".