55496907648 has 576 divisors, whose sum is σ = 207545148720. Its totient is φ = 14631321600.

The previous prime is 55496907611. The next prime is 55496907679. The reversal of 55496907648 is 84670969455.

55496907648 is a `hidden beast` number, since 55 + 496 + 90 + 7 + 6 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19811848 + ... + 19814648.

Almost surely, 2^55496907648 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 55496907648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103772574360).

55496907648 is an abundant number, since it is smaller than the sum of its proper divisors (152048241072).

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

55496907648 is a wasteful number, since it uses less digits than its factorization.

55496907648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 55496907648 in words is "fifty-five billion, four hundred ninety-six million, nine hundred seven thousand, six hundred forty-eight".