2559531 has 8 divisors (see below), whose sum is σ = 3675280. Its totient is φ = 1575072.

The previous prime is 2559523. The next prime is 2559541. The reversal of 2559531 is 1359552.

2559531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2559531 - 2³ = 2559523 is a prime.

It is a super-2 number, since 2×2559531² = 13102397879922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2559541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32776 + ... + 32853.

It is an arithmetic number, because the mean of its divisors is an integer number (459410).

2^2559531 is an apocalyptic number.

2559531 is a deficient number, since it is larger than the sum of its proper divisors (1115749).

2559531 is a wasteful number, since it uses less digits than its factorization.

2559531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65645.

The product of its digits is 6750, while the sum is 30.

The square root of 2559531 is about 1599.8534307867. The cubic root of 2559531 is about 136.7897212789.

The spelling of 2559531 in words is "two million, five hundred fifty-nine thousand, five hundred thirty-one".