2023533521 has 2 divisors, whose sum is σ = 2023533522. Its totient is φ = 2023533520.

The previous prime is 2023533451. The next prime is 2023533529. The reversal of 2023533521 is 1253353202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1939169296 + 84364225 = 44036^2 + 9185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2023533521 is a prime.

It is a super-2 number, since 2×2023533521² = 8189375821221314882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2023533529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011766760 + 1011766761.

It is an arithmetic number, because the mean of its divisors is an integer number (1011766761).

Almost surely, 2^2023533521 is an apocalyptic number.

It is an amenable number.

2023533521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023533521 is an equidigital number, since it uses as much as digits as its factorization.

2023533521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2023533521 is about 44983.7028378056. The cubic root of 2023533521 is about 1264.8435226468.

Adding to 2023533521 its reverse (1253353202), we get a palindrome (3276886723).

The spelling of 2023533521 in words is "two billion, twenty-three million, five hundred thirty-three thousand, five hundred twenty-one".