5512721900 has 36 divisors (see below), whose sum is σ = 13671552048. Its totient is φ = 1890075840.

The previous prime is 5512721897. The next prime is 5512721923. The reversal of 5512721900 is 91272155.

It is a happy number.

It is a super-3 number, since 3×5512721900³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3936959 + ... + 3938358.

Almost surely, 2^5512721900 is an apocalyptic number.

5512721900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5512721900 is an abundant number, since it is smaller than the sum of its proper divisors (8158830148).

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

5512721900 is a wasteful number, since it uses less digits than its factorization.

5512721900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875338 (or 7875331 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 5512721900 is about 74247.7063618803. The cubic root of 5512721900 is about 1766.5341117269.

The spelling of 5512721900 in words is "five billion, five hundred twelve million, seven hundred twenty-one thousand, nine hundred".