5551612432 has 80 divisors (see below), whose sum is σ = 11718853120. Its totient is φ = 2540730240.

The previous prime is 5551612427. The next prime is 5551612439. The reversal of 5551612432 is 2342161555.

It is not an unprimeable number, because it can be changed into a prime (5551612439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9056158 + ... + 9056770.

It is an arithmetic number, because the mean of its divisors is an integer number (146485664).

Almost surely, 2^5551612432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5551612432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5859426560).

5551612432 is an abundant number, since it is smaller than the sum of its proper divisors (6167240688).

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

5551612432 is an equidigital number, since it uses as much as digits as its factorization.

5551612432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 665 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 5551612432 is about 74509.1432778555. The cubic root of 5551612432 is about 1770.6784967270.

Adding to 5551612432 its reverse (2342161555), we get a palindrome (7893773987).

The spelling of 5551612432 in words is "five billion, five hundred fifty-one million, six hundred twelve thousand, four hundred thirty-two".