4550030213521 has 4 divisors (see below), whose sum is σ = 4900032537652. Its totient is φ = 4200027889392.

The previous prime is 4550030213447. The next prime is 4550030213527. The reversal of 4550030213521 is 1253120300554.

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 1745276145921 + 2804754067600 = 1321089^2 + 1674740^2 .

It is a cyclic number.

It is not a de Polignac number, because 4550030213521 - 2⁹ = 4550030213009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4550030213527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175001162046 + ... + 175001162071.

It is an arithmetic number, because the mean of its divisors is an integer number (1225008134413).

Almost surely, 2^{4550030213521} is an apocalyptic number.

It is an amenable number.

4550030213521 is a deficient number, since it is larger than the sum of its proper divisors (350002324131).

4550030213521 is a wasteful number, since it uses less digits than its factorization.

4550030213521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350002324130.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 4550030213521 in words is "four trillion, five hundred fifty billion, thirty million, two hundred thirteen thousand, five hundred twenty-one".