55449948960 has 144 divisors (see below), whose sum is σ = 216254840256. Its totient is φ = 12674271744.

The previous prime is 55449948959. The next prime is 55449948991. The reversal of 55449948960 is 6984994455.

55449948960 is a `hidden beast` number, since 5 + 5 + 4 + 4 + 99 + 489 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2740414 + ... + 2760573.

It is an arithmetic number, because the mean of its divisors is an integer number (1501769724).

Almost surely, 2^55449948960 is an apocalyptic number.

It is an amenable number.

55449948960 is an abundant number, since it is smaller than the sum of its proper divisors (160804891296).

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

55449948960 is a wasteful number, since it uses less digits than its factorization.

55449948960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501015 (or 5501004 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 55449948960 in words is "fifty-five billion, four hundred forty-nine million, nine hundred forty-eight thousand, nine hundred sixty".