5521320612 has 42 divisors (see below), whose sum is σ = 14486847158. Its totient is φ = 1840439232.

The previous prime is 5521320611. The next prime is 5521320619. The reversal of 5521320612 is 2160231255.

It is a happy number.

5521320612 is a `hidden beast` number, since 5 + 5 + 21 + 3 + 20 + 612 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5521084416 + 236196 = 74304^2 + 486^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5521320611) by changing a digit.

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 13 ways as a sum of consecutive naturals, for example, 943813 + ... + 949644.

Almost surely, 2^5521320612 is an apocalyptic number.

It is an amenable number.

5521320612 is an abundant number, since it is smaller than the sum of its proper divisors (8965526546).

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

5521320612 is a wasteful number, since it uses less digits than its factorization.

5521320612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893479 (or 1893462 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 5521320612 is about 74305.5893725364. The cubic root of 5521320612 is about 1767.4521111871.

Adding to 5521320612 its reverse (2160231255), we get a palindrome (7681551867).

The spelling of 5521320612 in words is "five billion, five hundred twenty-one million, three hundred twenty thousand, six hundred twelve".