55099699200 has 1560 divisors, whose sum is σ = 254644167008. Its totient is φ = 11466178560.

The previous prime is 55099699189. The next prime is 55099699247. The reversal of 55099699200 is 299699055.

55099699200 is a `hidden beast` number, since 550 + 9 + 9 + 69 + 9 + 20 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1560).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 754790364 + ... + 754790436.

Almost surely, 2^55099699200 is an apocalyptic number.

55099699200 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 55099699200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127322083504).

55099699200 is an abundant number, since it is smaller than the sum of its proper divisors (199544467808).

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

55099699200 is a wasteful number, since it uses less digits than its factorization.

55099699200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 1968300, while the sum is 54.

The spelling of 55099699200 in words is "fifty-five billion, ninety-nine million, six hundred ninety-nine thousand, two hundred".