2049559 has 4 divisors (see below), whose sum is σ = 2057616. Its totient is φ = 2041504.

The previous prime is 2049547. The next prime is 2049569. The reversal of 2049559 is 9559402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9559402 = 2 ⋅4779701.

It is a cyclic number.

It is not a de Polignac number, because 2049559 - 2⁷ = 2049431 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049569) 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, 3634 + ... + 4159.

It is an arithmetic number, because the mean of its divisors is an integer number (514404).

2^2049559 is an apocalyptic number.

2049559 is a deficient number, since it is larger than the sum of its proper divisors (8057).

2049559 is an equidigital number, since it uses as much as digits as its factorization.

2049559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 2049559 is about 1431.6280941641. The cubic root of 2049559 is about 127.0242993990.

The spelling of 2049559 in words is "two million, forty-nine thousand, five hundred fifty-nine".