2005553 has 8 divisors (see below), whose sum is σ = 2263680. Its totient is φ = 1760080.

The previous prime is 2005547. The next prime is 2005559. The reversal of 2005553 is 3555002.

It is an interprime number because it is at equal distance from previous prime (2005547) and next prime (2005559).

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

It is a cyclic number.

It is not a de Polignac number, because 2005553 - 2⁶ = 2005489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005559) 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, 2825 + ... + 3462.

It is an arithmetic number, because the mean of its divisors is an integer number (282960).

2^2005553 is an apocalyptic number.

It is an amenable number.

2005553 is a deficient number, since it is larger than the sum of its proper divisors (258127).

2005553 is a wasteful number, since it uses less digits than its factorization.

2005553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6327.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 2005553 is about 1416.1754834765. The cubic root of 2005553 is about 126.1086029302.

The spelling of 2005553 in words is "two million, five thousand, five hundred fifty-three".