55454515200 has 810 divisors, whose sum is σ = 231828753156. Its totient is φ = 12634030080.

The previous prime is 55454515159. The next prime is 55454515211. The reversal of 55454515200 is 251545455.

55454515200 is a `hidden beast` number, since 55 + 45 + 45 + 1 + 520 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 180633447 + ... + 180633753.

Almost surely, 2^55454515200 is an apocalyptic number.

55454515200 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 55454515200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115914376578).

55454515200 is an abundant number, since it is smaller than the sum of its proper divisors (176374237956).

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

55454515200 is a wasteful number, since it uses less digits than its factorization.

55454515200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 55454515200 in words is "fifty-five billion, four hundred fifty-four million, five hundred fifteen thousand, two hundred".