4521344533 has 4 divisors (see below), whose sum is σ = 4528673100. Its totient is φ = 4514015968.

The previous prime is 4521344507. The next prime is 4521344543. The reversal of 4521344533 is 3354431254.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3354431254 = 2 ⋅1677215627.

It can be written as a sum of positive squares in 2 ways, for example, as 2628920529 + 1892424004 = 51273^2 + 43502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4521344533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521344543) 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, 3663358 + ... + 3664591.

It is an arithmetic number, because the mean of its divisors is an integer number (1132168275).

Almost surely, 2^4521344533 is an apocalyptic number.

It is an amenable number.

4521344533 is a deficient number, since it is larger than the sum of its proper divisors (7328567).

4521344533 is an equidigital number, since it uses as much as digits as its factorization.

4521344533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7328566.

The product of its digits is 86400, while the sum is 34.

The square root of 4521344533 is about 67240.9438735061. The cubic root of 4521344533 is about 1653.5698080242.

Adding to 4521344533 its reverse (3354431254), we get a palindrome (7875775787).

The spelling of 4521344533 in words is "four billion, five hundred twenty-one million, three hundred forty-four thousand, five hundred thirty-three".