2556036423 has 24 divisors (see below), whose sum is σ = 3873186720. Its totient is φ = 1622080320.

The previous prime is 2556036403. The next prime is 2556036467. The reversal of 2556036423 is 3246306552.

2556036423 is a `hidden beast` number, since 2 + 5 + 5 + 6 + 0 + 3 + 642 + 3 = 666.

It is not a de Polignac number, because 2556036423 - 2¹⁴ = 2556020039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556036403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50436 + ... + 87497.

It is an arithmetic number, because the mean of its divisors is an integer number (161382780).

Almost surely, 2^2556036423 is an apocalyptic number.

2556036423 is a deficient number, since it is larger than the sum of its proper divisors (1317150297).

2556036423 is a wasteful number, since it uses less digits than its factorization.

2556036423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138039 (or 138036 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 2556036423 is about 50557.2588556777. The cubic root of 2556036423 is about 1367.2743904442.

The spelling of 2556036423 in words is "two billion, five hundred fifty-six million, thirty-six thousand, four hundred twenty-three".