2533343521 has 2 divisors, whose sum is σ = 2533343522. Its totient is φ = 2533343520.

The previous prime is 2533343507. The next prime is 2533343537. The reversal of 2533343521 is 1253433352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2466512896 + 66830625 = 49664^2 + 8175^2 .

It is a cyclic number.

It is not a de Polignac number, because 2533343521 - 2²⁷ = 2399125793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2533343921) 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, 1266671760 + 1266671761.

It is an arithmetic number, because the mean of its divisors is an integer number (1266671761).

Almost surely, 2^2533343521 is an apocalyptic number.

It is an amenable number.

2533343521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2533343521 is an equidigital number, since it uses as much as digits as its factorization.

2533343521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 31.

The square root of 2533343521 is about 50332.3307725760. The cubic root of 2533343521 is about 1363.2160625824.

Adding to 2533343521 its reverse (1253433352), we get a palindrome (3786776873).

The spelling of 2533343521 in words is "two billion, five hundred thirty-three million, three hundred forty-three thousand, five hundred twenty-one".