5512251521 has 12 divisors (see below), whose sum is σ = 6421949460. Its totient is φ = 4717611360.

The previous prime is 5512251491. The next prime is 5512251551. The reversal of 5512251521 is 1251522155.

It is an interprime number because it is at equal distance from previous prime (5512251491) and next prime (5512251551).

It can be written as a sum of positive squares in 2 ways, for example, as 2920321600 + 2591929921 = 54040^2 + 50911^2 .

It is not a de Polignac number, because 5512251521 - 2¹⁴ = 5512235137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5512251551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52706 + ... + 117483.

It is an arithmetic number, because the mean of its divisors is an integer number (535162455).

Almost surely, 2^5512251521 is an apocalyptic number.

It is an amenable number.

5512251521 is a deficient number, since it is larger than the sum of its proper divisors (909697939).

5512251521 is a wasteful number, since it uses less digits than its factorization.

5512251521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170864 (or 170857 counting only the distinct ones).

The product of its digits is 5000, while the sum is 29.

The square root of 5512251521 is about 74244.5386611029. The cubic root of 5512251521 is about 1766.4838664821.

Adding to 5512251521 its reverse (1251522155), we get a palindrome (6763773676).

The spelling of 5512251521 in words is "five billion, five hundred twelve million, two hundred fifty-one thousand, five hundred twenty-one".