2020553 has 4 divisors (see below), whose sum is σ = 2038548. Its totient is φ = 2002560.

The previous prime is 2020547. The next prime is 2020561. The reversal of 2020553 is 3550202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 299209 + 1721344 = 547^2 + 1312^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020553 - 2⁴ = 2020537 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁰ + 0 + 2¹⁶ + 0 + 5⁴ + 5⁹ + 3⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020153) 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, 8828 + ... + 9053.

It is an arithmetic number, because the mean of its divisors is an integer number (509637).

2^2020553 is an apocalyptic number.

It is an amenable number.

2020553 is a deficient number, since it is larger than the sum of its proper divisors (17995).

2020553 is a wasteful number, since it uses less digits than its factorization.

2020553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17994.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 2020553 is about 1421.4615717634. The cubic root of 2020553 is about 126.4222209305.

Adding to 2020553 its reverse (3550202), we get a palindrome (5570755).

The spelling of 2020553 in words is "two million, twenty thousand, five hundred fifty-three".