55504890240 has 128 divisors (see below), whose sum is σ = 180260316000. Its totient is φ = 14522007552.

The previous prime is 55504890239. The next prime is 55504890283. The reversal of 55504890240 is 4209840555.

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

It is a junction number, because it is equal to n+sod(n) for n = 55504890192 and 55504890201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170965 + ... + 374484.

Almost surely, 2^55504890240 is an apocalyptic number.

It is an amenable number.

55504890240 is an abundant number, since it is smaller than the sum of its proper divisors (124755425760).

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

55504890240 is a wasteful number, since it uses less digits than its factorization.

55504890240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545524 (or 545512 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 55504890240 in words is "fifty-five billion, five hundred four million, eight hundred ninety thousand, two hundred forty".