5550150022421 has 4 divisors (see below), whose sum is σ = 5553231728844. Its totient is φ = 5547068316000.

The previous prime is 5550150022393. The next prime is 5550150022447. The reversal of 5550150022421 is 1242200510555.

It is a happy number.

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 298100712196 + 5252049310225 = 545986^2 + 2291735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5550150022421 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 (5550150022451) 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, 1540850510 + ... + 1540854111.

It is an arithmetic number, because the mean of its divisors is an integer number (1388307932211).

Almost surely, 2^{5550150022421} is an apocalyptic number.

It is an amenable number.

5550150022421 is a deficient number, since it is larger than the sum of its proper divisors (3081706423).

5550150022421 is a wasteful number, since it uses less digits than its factorization.

5550150022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081706422.

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 5550150022421 its reverse (1242200510555), we get a palindrome (6792350532976).

The spelling of 5550150022421 in words is "five trillion, five hundred fifty billion, one hundred fifty million, twenty-two thousand, four hundred twenty-one".