2556046263 has 8 divisors (see below), whose sum is σ = 3408311808. Its totient is φ = 1703905784.

The previous prime is 2556046253. The next prime is 2556046267. The reversal of 2556046263 is 3626406552.

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 2556046263 - 2¹⁶ = 2555980727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556046267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38956 + ... + 81422.

It is an arithmetic number, because the mean of its divisors is an integer number (426038976).

Almost surely, 2^2556046263 is an apocalyptic number.

2556046263 is a deficient number, since it is larger than the sum of its proper divisors (852265545).

2556046263 is a wasteful number, since it uses less digits than its factorization.

2556046263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62533.

The product of its (nonzero) digits is 259200, while the sum is 39.

The square root of 2556046263 is about 50557.3561709866. The cubic root of 2556046263 is about 1367.2761449788.

The spelling of 2556046263 in words is "two billion, five hundred fifty-six million, forty-six thousand, two hundred sixty-three".