2013550021 has 8 divisors (see below), whose sum is σ = 2332723904. Its totient is φ = 1702257120.

The previous prime is 2013550013. The next prime is 2013550031. The reversal of 2013550021 is 1200553102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2013550021 - 2³ = 2013550013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013550031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1969695 + ... + 1970716.

It is an arithmetic number, because the mean of its divisors is an integer number (291590488).

Almost surely, 2^2013550021 is an apocalyptic number.

It is an amenable number.

2013550021 is a deficient number, since it is larger than the sum of its proper divisors (319173883).

2013550021 is an equidigital number, since it uses as much as digits as its factorization.

2013550021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940491.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 2013550021 is about 44872.5976627162. The cubic root of 2013550021 is about 1262.7599743812.

The spelling of 2013550021 in words is "two billion, thirteen million, five hundred fifty thousand, twenty-one".