55229698800 has 240 divisors, whose sum is σ = 201150062080. Its totient is φ = 14385288960.

The previous prime is 55229698789. The next prime is 55229698837. The reversal of 55229698800 is 889692255.

55229698800 is a `hidden beast` number, since 552 + 2 + 9 + 6 + 9 + 8 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

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, 404937 + ... + 523863.

Almost surely, 2^55229698800 is an apocalyptic number.

55229698800 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 55229698800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100575031040).

55229698800 is an abundant number, since it is smaller than the sum of its proper divisors (145920363280).

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

55229698800 is a wasteful number, since it uses less digits than its factorization.

55229698800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118997 (or 118980 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 55229698800 in words is "fifty-five billion, two hundred twenty-nine million, six hundred ninety-eight thousand, eight hundred".