4521805252 has 12 divisors (see below), whose sum is σ = 7913695356. Its totient is φ = 2260749440.

The previous prime is 4521805241. The next prime is 4521805271. The reversal of 4521805252 is 2525081254.

It can be written as a sum of positive squares in 2 ways, for example, as 3962198916 + 559606336 = 62946^2 + 23656^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51528 + ... + 108160.

It is an arithmetic number, because the mean of its divisors is an integer number (659474613).

Almost surely, 2^4521805252 is an apocalyptic number.

It is an amenable number.

4521805252 is a deficient number, since it is larger than the sum of its proper divisors (3391890104).

4521805252 is a wasteful number, since it uses less digits than its factorization.

4521805252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76598 (or 76596 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 4521805252 is about 67244.3696676532. The cubic root of 4521805252 is about 1653.6259716387.

The spelling of 4521805252 in words is "four billion, five hundred twenty-one million, eight hundred five thousand, two hundred fifty-two".