5502071221 has 4 divisors (see below), whose sum is σ = 5521934572. Its totient is φ = 5482207872.

The previous prime is 5502071093. The next prime is 5502071251. The reversal of 5502071221 is 1221702055.

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 670292100 + 4831779121 = 25890^2 + 69511^2 .

It is a cyclic number.

It is not a de Polignac number, because 5502071221 - 2⁷ = 5502071093 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 (5502071251) 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, 9931260 + ... + 9931813.

It is an arithmetic number, because the mean of its divisors is an integer number (1380483643).

Almost surely, 2^5502071221 is an apocalyptic number.

It is an amenable number.

5502071221 is a deficient number, since it is larger than the sum of its proper divisors (19863351).

5502071221 is a wasteful number, since it uses less digits than its factorization.

5502071221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19863350.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 5502071221 is about 74175.9477256610. The cubic root of 5502071221 is about 1765.3957196000.

Adding to 5502071221 its reverse (1221702055), we get a palindrome (6723773276).

The spelling of 5502071221 in words is "five billion, five hundred two million, seventy-one thousand, two hundred twenty-one".