2556260311 has 8 divisors (see below), whose sum is σ = 2822246784. Its totient is φ = 2295873720.

The previous prime is 2556260309. The next prime is 2556260321. The reversal of 2556260311 is 1130626552.

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 2556260311 - 2¹ = 2556260309 is a prime.

It is a super-3 number, since 3×2556260311³ (a number of 29 digits) contains 333 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 (2556260321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399011 + ... + 1400836.

It is an arithmetic number, because the mean of its divisors is an integer number (352780848).

Almost surely, 2^2556260311 is an apocalyptic number.

2556260311 is a deficient number, since it is larger than the sum of its proper divisors (265986473).

2556260311 is a wasteful number, since it uses less digits than its factorization.

2556260311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799941.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2556260311 is about 50559.4730095162. The cubic root of 2556260311 is about 1367.3143099838.

Adding to 2556260311 its reverse (1130626552), we get a palindrome (3686886863).

The spelling of 2556260311 in words is "two billion, five hundred fifty-six million, two hundred sixty thousand, three hundred eleven".