4524533312021 has 4 divisors (see below), whose sum is σ = 4609901865132. Its totient is φ = 4439164758912.

The previous prime is 4524533312017. The next prime is 4524533312041. The reversal of 4524533312021 is 1202133354254.

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 1336130239921 + 3188403072100 = 1155911^2 + 1785610^2 .

It is a cyclic number.

It is not a de Polignac number, because 4524533312021 - 2² = 4524533312017 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 (4524533312041) 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, 42684276476 + ... + 42684276581.

It is an arithmetic number, because the mean of its divisors is an integer number (1152475466283).

Almost surely, 2^{4524533312021} is an apocalyptic number.

It is an amenable number.

4524533312021 is a deficient number, since it is larger than the sum of its proper divisors (85368553111).

4524533312021 is an equidigital number, since it uses as much as digits as its factorization.

4524533312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85368553110.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 4524533312021 its reverse (1202133354254), we get a palindrome (5726666666275).

The spelling of 4524533312021 in words is "four trillion, five hundred twenty-four billion, five hundred thirty-three million, three hundred twelve thousand, twenty-one".