5521457812 has 36 divisors (see below), whose sum is σ = 11078492796. Its totient is φ = 2398456320.

The previous prime is 5521457803. The next prime is 5521457849. The reversal of 5521457812 is 2187541255.

It can be written as a sum of positive squares in 6 ways, for example, as 76176 + 5521381636 = 276^2 + 74306^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228739 + ... + 251722.

It is an arithmetic number, because the mean of its divisors is an integer number (307735911).

Almost surely, 2^5521457812 is an apocalyptic number.

5521457812 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

5521457812 is an abundant number, since it is smaller than the sum of its proper divisors (5557034984).

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

5521457812 is a wasteful number, since it uses less digits than its factorization.

5521457812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480508 (or 480493 counting only the distinct ones).

The product of its digits is 112000, while the sum is 40.

The square root of 5521457812 is about 74306.5125813343. The cubic root of 5521457812 is about 1767.4667509469.

The spelling of 5521457812 in words is "five billion, five hundred twenty-one million, four hundred fifty-seven thousand, eight hundred twelve".