2560131331 has 4 divisors (see below), whose sum is σ = 2574929952. Its totient is φ = 2545332712.

The previous prime is 2560131289. The next prime is 2560131367. The reversal of 2560131331 is 1331310652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2560131331 - 2⁹ = 2560130819 is a prime.

It is a super-2 number, since 2×2560131331² = 13108544863935663122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2560131296 and 2560131305.

It is not an unprimeable number, because it can be changed into a prime (2560131131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7399051 + ... + 7399396.

It is an arithmetic number, because the mean of its divisors is an integer number (643732488).

Almost surely, 2^2560131331 is an apocalyptic number.

2560131331 is a deficient number, since it is larger than the sum of its proper divisors (14798621).

2560131331 is a wasteful number, since it uses less digits than its factorization.

2560131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14798620.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2560131331 is about 50597.7403744476. The cubic root of 2560131331 is about 1368.0041499467.

Adding to 2560131331 its reverse (1331310652), we get a palindrome (3891441983).

The spelling of 2560131331 in words is "two billion, five hundred sixty million, one hundred thirty-one thousand, three hundred thirty-one".