2559949 has 16 divisors (see below), whose sum is σ = 3096576. Its totient is φ = 2070000.

The previous prime is 2559937. The next prime is 2559959. The reversal of 2559949 is 9499552.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2559949 - 2⁹ = 2559437 is a prime.

2559949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559959) 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 15 ways as a sum of consecutive naturals, for example, 10074 + ... + 10324.

It is an arithmetic number, because the mean of its divisors is an integer number (193536).

2^2559949 is an apocalyptic number.

It is an amenable number.

2559949 is a deficient number, since it is larger than the sum of its proper divisors (536627).

2559949 is a wasteful number, since it uses less digits than its factorization.

2559949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

The product of its digits is 145800, while the sum is 43.

The square root of 2559949 is about 1599.9840624206. The cubic root of 2559949 is about 136.7971673034.

The spelling of 2559949 in words is "two million, five hundred fifty-nine thousand, nine hundred forty-nine".