5512621440 has 128 divisors (see below), whose sum is σ = 17601585120. Its totient is φ = 1467514880.

The previous prime is 5512621427. The next prime is 5512621447. The reversal of 5512621440 is 441262155.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5512621398 and 5512621407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5512621447) 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, 1297720 + ... + 1301960.

Almost surely, 2^5512621440 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 5512621440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8800792560).

5512621440 is an abundant number, since it is smaller than the sum of its proper divisors (12088963680).

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

5512621440 is a wasteful number, since it uses less digits than its factorization.

5512621440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940 (or 4928 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 5512621440 is about 74247.0298395835. The cubic root of 5512621440 is about 1766.5233809664.

Adding to 5512621440 its reverse (441262155), we get a palindrome (5953883595).

The spelling of 5512621440 in words is "five billion, five hundred twelve million, six hundred twenty-one thousand, four hundred forty".