2556173323 has 8 divisors (see below), whose sum is σ = 2810511360. Its totient is φ = 2305495080.

The previous prime is 2556173317. The next prime is 2556173359. The reversal of 2556173323 is 3233716552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2556173323 - 2²¹ = 2554076171 is a prime.

It is a super-3 number, since 3×2556173323³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2556173383) 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 7 ways as a sum of consecutive naturals, for example, 913483 + ... + 916276.

It is an arithmetic number, because the mean of its divisors is an integer number (351313920).

Almost surely, 2^2556173323 is an apocalyptic number.

2556173323 is a deficient number, since it is larger than the sum of its proper divisors (254338037).

2556173323 is a wasteful number, since it uses less digits than its factorization.

2556173323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829897.

The product of its digits is 113400, while the sum is 37.

The square root of 2556173323 is about 50558.6127479780. The cubic root of 2556173323 is about 1367.2988001802.

Adding to 2556173323 its reverse (3233716552), we get a palindrome (5789889875).

The spelling of 2556173323 in words is "two billion, five hundred fifty-six million, one hundred seventy-three thousand, three hundred twenty-three".