2556460663 has 8 divisors (see below), whose sum is σ = 2794158720. Its totient is φ = 2328464640.

The previous prime is 2556460633. The next prime is 2556460679. The reversal of 2556460663 is 3660646552.

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 2556460663 - 2¹³ = 2556452471 is a prime.

It is a super-2 number, since 2×2556460663² = 13070982242932799138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556460633) 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, 2424958 + ... + 2426011.

It is an arithmetic number, because the mean of its divisors is an integer number (349269840).

Almost surely, 2^2556460663 is an apocalyptic number.

2556460663 is a deficient number, since it is larger than the sum of its proper divisors (237698057).

2556460663 is a wasteful number, since it uses less digits than its factorization.

2556460663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851017.

The product of its (nonzero) digits is 777600, while the sum is 43.

The square root of 2556460663 is about 50561.4543204604. The cubic root of 2556460663 is about 1367.3500310459.

The spelling of 2556460663 in words is "two billion, five hundred fifty-six million, four hundred sixty thousand, six hundred sixty-three".