5521153321 has 4 divisors (see below), whose sum is σ = 5544849492. Its totient is φ = 5497457152.

The previous prime is 5521153303. The next prime is 5521153327. The reversal of 5521153321 is 1233511255.

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 2936447721 + 2584705600 = 54189^2 + 50840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5521153321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5521153321.

It is not an unprimeable number, because it can be changed into a prime (5521153327) 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, 11847736 + ... + 11848201.

It is an arithmetic number, because the mean of its divisors is an integer number (1386212373).

Almost surely, 2^5521153321 is an apocalyptic number.

It is an amenable number.

5521153321 is a deficient number, since it is larger than the sum of its proper divisors (23696171).

5521153321 is a wasteful number, since it uses less digits than its factorization.

5521153321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23696170.

The product of its digits is 4500, while the sum is 28.

The square root of 5521153321 is about 74304.4636680731. The cubic root of 5521153321 is about 1767.4342602756.

Adding to 5521153321 its reverse (1233511255), we get a palindrome (6754664576).

The spelling of 5521153321 in words is "five billion, five hundred twenty-one million, one hundred fifty-three thousand, three hundred twenty-one".