5515203543512 has 32 divisors (see below), whose sum is σ = 11270643032880. Its totient is φ = 2514810138240.

The previous prime is 5515203543503. The next prime is 5515203543517. The reversal of 5515203543512 is 2153453025155.

It is a self number, because there is not a number n which added to its sum of digits gives 5515203543512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515203543517) 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, 319454039 + ... + 319471302.

Almost surely, 2^{5515203543512} is an apocalyptic number.

5515203543512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

5515203543512 is an abundant number, since it is smaller than the sum of its proper divisors (5755439489368).

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

5515203543512 is a wasteful number, since it uses less digits than its factorization.

5515203543512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638925443 (or 638925439 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 41.

Adding to 5515203543512 its reverse (2153453025155), we get a palindrome (7668656568667).

The spelling of 5515203543512 in words is "five trillion, five hundred fifteen billion, two hundred three million, five hundred forty-three thousand, five hundred twelve".