2055589 has 4 divisors (see below), whose sum is σ = 2176524. Its totient is φ = 1934656.

The previous prime is 2055569. The next prime is 2055611. The reversal of 2055589 is 9855502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9855502 = 2 ⋅4927751.

It can be written as a sum of positive squares in 2 ways, for example, as 1399489 + 656100 = 1183^2 + 810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2055589 is a prime.

It is a super-2 number, since 2×2055589² = 8450892273842, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

2055589 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055509) 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, 60442 + ... + 60475.

It is an arithmetic number, because the mean of its divisors is an integer number (544131).

2^2055589 is an apocalyptic number.

It is an amenable number.

2055589 is a deficient number, since it is larger than the sum of its proper divisors (120935).

2055589 is a wasteful number, since it uses less digits than its factorization.

2055589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120934.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 2055589 is about 1433.7325413061. The cubic root of 2055589 is about 127.1487500049.

The spelling of 2055589 in words is "two million, fifty-five thousand, five hundred eighty-nine".