2556524404 has 48 divisors (see below), whose sum is σ = 5389619200. Its totient is φ = 1036548576.

The previous prime is 2556524401. The next prime is 2556524407. The reversal of 2556524404 is 4044256552.

It is a happy number.

2556524404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2556524401) and next prime (2556524407).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556524401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434917 + ... + 440755.

Almost surely, 2^2556524404 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 2556524404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2694809600).

2556524404 is an abundant number, since it is smaller than the sum of its proper divisors (2833094796).

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

2556524404 is a wasteful number, since it uses less digits than its factorization.

2556524404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6692 (or 6690 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

The square root of 2556524404 is about 50562.0846484794. The cubic root of 2556524404 is about 1367.3613951342.

The spelling of 2556524404 in words is "two billion, five hundred fifty-six million, five hundred twenty-four thousand, four hundred four".