2559673 has 8 divisors (see below), whose sum is σ = 2724840. Its totient is φ = 2404480.

The previous prime is 2559631. The next prime is 2559677. The reversal of 2559673 is 3769552.

It can be written as a sum of positive squares in 4 ways, for example, as 273529 + 2286144 = 523^2 + 1512^2 .

It is not a de Polignac number, because 2559673 - 2¹³ = 2551481 is a prime.

It is a Duffinian number.

2559673 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2559677) 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, 4653 + ... + 5173.

It is an arithmetic number, because the mean of its divisors is an integer number (340605).

2^2559673 is an apocalyptic number.

It is an amenable number.

2559673 is a deficient number, since it is larger than the sum of its proper divisors (165167).

2559673 is an frugal number, since it uses more digits than its factorization.

With its predecessor (2559672) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (572).

2559673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 538 counting only the distinct ones).

The product of its digits is 56700, while the sum is 37.

The square root of 2559673 is about 1599.8978092366. The cubic root of 2559673 is about 136.7922508805.

It can be divided in two parts, 255967 and 3, that added together give a triangular number (255970 = T₇₁₅).

The spelling of 2559673 in words is "two million, five hundred fifty-nine thousand, six hundred seventy-three".