55201521200 has 240 divisors, whose sum is σ = 153360470016. Its totient is φ = 18704025600.

The previous prime is 55201521187. The next prime is 55201521211. The reversal of 55201521200 is 212510255.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124608179 + ... + 124608621.

Almost surely, 2^55201521200 is an apocalyptic number.

55201521200 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 55201521200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76680235008).

55201521200 is an abundant number, since it is smaller than the sum of its proper divisors (98158948816).

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

55201521200 is a wasteful number, since it uses less digits than its factorization.

55201521200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The spelling of 55201521200 in words is "fifty-five billion, two hundred one million, five hundred twenty-one thousand, two hundred".