4549500021 has 8 divisors (see below), whose sum is σ = 6617454624. Its totient is φ = 2757272720.

The previous prime is 4549500013. The next prime is 4549500037. The reversal of 4549500021 is 1200059454.

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 4549500021 - 2³ = 4549500013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4549500001) 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 7 ways as a sum of consecutive naturals, for example, 68931786 + ... + 68931851.

It is an arithmetic number, because the mean of its divisors is an integer number (827181828).

Almost surely, 2^4549500021 is an apocalyptic number.

It is an amenable number.

4549500021 is a deficient number, since it is larger than the sum of its proper divisors (2067954603).

4549500021 is a wasteful number, since it uses less digits than its factorization.

4549500021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137863651.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 4549500021 is about 67449.9816234223. The cubic root of 4549500021 is about 1656.9950986549.

Adding to 4549500021 its reverse (1200059454), we get a palindrome (5749559475).

The spelling of 4549500021 in words is "four billion, five hundred forty-nine million, five hundred thousand, twenty-one".