2559831 has 12 divisors (see below), whose sum is σ = 3570168. Its totient is φ = 1631344.

The previous prime is 2559829. The next prime is 2559839. The reversal of 2559831 is 1389552.

It is not a de Polignac number, because 2559831 - 2¹ = 2559829 is a prime.

It is a super-2 number, since 2×2559831² = 13105469497122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2559792 and 2559801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559839) 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 11 ways as a sum of consecutive naturals, for example, 781 + ... + 2393.

It is an arithmetic number, because the mean of its divisors is an integer number (297514).

2^2559831 is an apocalyptic number.

2559831 is a deficient number, since it is larger than the sum of its proper divisors (1010337).

2559831 is a wasteful number, since it uses less digits than its factorization.

2559831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1639 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 2559831 is about 1599.9471866284. The cubic root of 2559831 is about 136.7950653977.

The spelling of 2559831 in words is "two million, five hundred fifty-nine thousand, eight hundred thirty-one".