2023553 has 12 divisors (see below), whose sum is σ = 2396052. Its totient is φ = 1703520.

The previous prime is 2023547. The next prime is 2023577. The reversal of 2023553 is 3553202.

It can be written as a sum of positive squares in 2 ways, for example, as 1117249 + 906304 = 1057^2 + 952^2 .

It is not a de Polignac number, because 2023553 - 2⁸ = 2023297 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2651 + ... + 3327.

It is an arithmetic number, because the mean of its divisors is an integer number (199671).

2^2023553 is an apocalyptic number.

It is an amenable number.

2023553 is a deficient number, since it is larger than the sum of its proper divisors (372499).

2023553 is an equidigital number, since it uses as much as digits as its factorization.

2023553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 2023553 is about 1422.5164322425. The cubic root of 2023553 is about 126.4847581192.

Adding to 2023553 its reverse (3553202), we get a palindrome (5576755).

The spelling of 2023553 in words is "two million, twenty-three thousand, five hundred fifty-three".