5522421621 has 8 divisors (see below), whose sum is σ = 7368937504. Its totient is φ = 3678760080.

The previous prime is 5522421563. The next prime is 5522421689. The reversal of 5522421621 is 1261242255.

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

It is not a de Polignac number, because 5522421621 - 2⁷ = 5522421493 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 (5522421221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709066 + ... + 716811.

It is an arithmetic number, because the mean of its divisors is an integer number (921117188).

Almost surely, 2^5522421621 is an apocalyptic number.

It is an amenable number.

5522421621 is a deficient number, since it is larger than the sum of its proper divisors (1846515883).

5522421621 is a wasteful number, since it uses less digits than its factorization.

5522421621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427171.

The product of its digits is 9600, while the sum is 30.

The square root of 5522421621 is about 74312.9976585523. The cubic root of 5522421621 is about 1767.5695861829.

Adding to 5522421621 its reverse (1261242255), we get a palindrome (6783663876).

The spelling of 5522421621 in words is "five billion, five hundred twenty-two million, four hundred twenty-one thousand, six hundred twenty-one".