55989273600 has 1320 divisors, whose sum is σ = 233911639808. Its totient is φ = 13138329600.

The previous prime is 55989273583. The next prime is 55989273629. The reversal of 55989273600 is 637298955.

55989273600 is a `hidden beast` number, since 5 + 5 + 9 + 8 + 9 + 27 + 3 + 600 = 666.

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, 835660767 + ... + 835660833.

Almost surely, 2^55989273600 is an apocalyptic number.

55989273600 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 55989273600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116955819904).

55989273600 is an abundant number, since it is smaller than the sum of its proper divisors (177922366208).

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

55989273600 is a wasteful number, since it uses less digits than its factorization.

55989273600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 55989273600 in words is "fifty-five billion, nine hundred eighty-nine million, two hundred seventy-three thousand, six hundred".