5551554560 has 144 divisors (see below), whose sum is σ = 13702738896. Its totient is φ = 2157969408.

The previous prime is 5551554557. The next prime is 5551554599. The reversal of 5551554560 is 654551555.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28180382 + ... + 28180578.

It is an arithmetic number, because the mean of its divisors is an integer number (95157909).

Almost surely, 2^5551554560 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 5551554560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6851369448).

5551554560 is an abundant number, since it is smaller than the sum of its proper divisors (8151184336).

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

5551554560 is an frugal number, since it uses more digits than its factorization.

5551554560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 41.

The square root of 5551554560 is about 74508.7549218211. The cubic root of 5551554560 is about 1770.6723439762.

The spelling of 5551554560 in words is "five billion, five hundred fifty-one million, five hundred fifty-four thousand, five hundred sixty".