55203522500 has 90 divisors (see below), whose sum is σ = 140428609398. Its totient is φ = 18926880000.

The previous prime is 55203522499. The next prime is 55203522509. The reversal of 55203522500 is 522530255.

It can be written as a sum of positive squares in 5 ways, for example, as 5253060484 + 49950462016 = 72478^2 + 223496^2 .

It is not an unprimeable number, because it can be changed into a prime (55203522509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 102821 + ... + 347820.

Almost surely, 2^55203522500 is an apocalyptic number.

55203522500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55203522500 is an abundant number, since it is smaller than the sum of its proper divisors (85225086898).

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

55203522500 is a wasteful number, since it uses less digits than its factorization.

55203522500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450679 (or 450655 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The spelling of 55203522500 in words is "fifty-five billion, two hundred three million, five hundred twenty-two thousand, five hundred".