55353645600 has 576 divisors, whose sum is σ = 215344967040. Its totient is φ = 12191334400.

The previous prime is 55353645553. The next prime is 55353645647. The reversal of 55353645600 is 654635355.

It is an interprime number because it is at equal distance from previous prime (55353645553) and next prime (55353645647).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13013074 + ... + 13017326.

It is an arithmetic number, because the mean of its divisors is an integer number (373862790).

Almost surely, 2^55353645600 is an apocalyptic number.

55353645600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55353645600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107672483520).

55353645600 is an abundant number, since it is smaller than the sum of its proper divisors (159991321440).

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

55353645600 is a wasteful number, since it uses less digits than its factorization.

55353645600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333 (or 4320 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 42.

The spelling of 55353645600 in words is "fifty-five billion, three hundred fifty-three million, six hundred forty-five thousand, six hundred".