5515251132 has 12 divisors (see below), whose sum is σ = 12868919336. Its totient is φ = 1838417040.

The previous prime is 5515251113. The next prime is 5515251151. The reversal of 5515251132 is 2311525155.

It is an interprime number because it is at equal distance from previous prime (5515251113) and next prime (5515251151).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 5515251132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229802119 + ... + 229802142.

Almost surely, 2^5515251132 is an apocalyptic number.

It is an amenable number.

5515251132 is an abundant number, since it is smaller than the sum of its proper divisors (7353668204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5515251132 is a wasteful number, since it uses less digits than its factorization.

5515251132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459604268 (or 459604266 counting only the distinct ones).

The product of its digits is 7500, while the sum is 30.

The square root of 5515251132 is about 74264.7368001799. The cubic root of 5515251132 is about 1766.8042318574.

Adding to 5515251132 its reverse (2311525155), we get a palindrome (7826776287).

The spelling of 5515251132 in words is "five billion, five hundred fifteen million, two hundred fifty-one thousand, one hundred thirty-two".