2055553 has 4 divisors (see below), whose sum is σ = 2163760. Its totient is φ = 1947348.

The previous prime is 2055551. The next prime is 2055569. The reversal of 2055553 is 3555502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3555502 = 2 ⋅1777751.

It is not a de Polignac number, because 2055553 - 2¹ = 2055551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055551) 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, 54075 + ... + 54112.

It is an arithmetic number, because the mean of its divisors is an integer number (540940).

2^2055553 is an apocalyptic number.

It is an amenable number.

2055553 is a deficient number, since it is larger than the sum of its proper divisors (108207).

2055553 is a wasteful number, since it uses less digits than its factorization.

2055553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108206.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 2055553 is about 1433.7199866083. The cubic root of 2055553 is about 127.1480077389.

The spelling of 2055553 in words is "two million, fifty-five thousand, five hundred fifty-three".