5524865221 has 8 divisors (see below), whose sum is σ = 5639972600. Its totient is φ = 5410549440.

The previous prime is 5524865153. The next prime is 5524865261. The reversal of 5524865221 is 1225684255.

It can be written as a sum of positive squares in 4 ways, for example, as 1259469121 + 4265396100 = 35489^2 + 65310^2 .

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 5524865221 - 2²³ = 5516476613 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 (5524865261) 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, 183786 + ... + 211723.

It is an arithmetic number, because the mean of its divisors is an integer number (704996575).

Almost surely, 2^5524865221 is an apocalyptic number.

It is an amenable number.

5524865221 is a deficient number, since it is larger than the sum of its proper divisors (115107379).

5524865221 is a wasteful number, since it uses less digits than its factorization.

5524865221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395799.

The product of its digits is 192000, while the sum is 40.

The square root of 5524865221 is about 74329.4371093983. The cubic root of 5524865221 is about 1767.8302566173.

The spelling of 5524865221 in words is "five billion, five hundred twenty-four million, eight hundred sixty-five thousand, two hundred twenty-one".