55302844880 has 20 divisors (see below), whose sum is σ = 128579114532. Its totient is φ = 22121137920.

The previous prime is 55302844813. The next prime is 55302844907. The reversal of 55302844880 is 8844820355.

It can be written as a sum of positive squares in 2 ways, for example, as 34450329664 + 20852515216 = 185608^2 + 144404^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345642701 + ... + 345642860.

Almost surely, 2^55302844880 is an apocalyptic number.

It is an amenable number.

55302844880 is an abundant number, since it is smaller than the sum of its proper divisors (73276269652).

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

55302844880 is a wasteful number, since it uses less digits than its factorization.

55302844880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691285574 (or 691285568 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 47.

The spelling of 55302844880 in words is "fifty-five billion, three hundred two million, eight hundred forty-four thousand, eight hundred eighty".