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55789289600 = 2752111983417
BaseRepresentation
bin110011111101010011…
…010000000010000000
312100000001101112222012
4303331103100002000
51403224024231400
641343530032052
74013340065042
oct637523200200
9170001345865
1055789289600
1121729666010
12a98b878628
1353512a1485
1429b356da92
1516b7c59d35
hexcfd4d0080

55789289600 has 192 divisors, whose sum is σ = 158260629600. Its totient is φ = 19219046400.

The previous prime is 55789289599. The next prime is 55789289669. The reversal of 55789289600 is 698298755.

It is a super-2 number, since 2×557892896002 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55789289600.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 627092 + ... + 710508.

Almost surely, 255789289600 is an apocalyptic number.

55789289600 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 55789289600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79130314800).

55789289600 is an abundant number, since it is smaller than the sum of its proper divisors (102471340000).

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

55789289600 is a wasteful number, since it uses less digits than its factorization.

55789289600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83471 (or 83454 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 55789289600 in words is "fifty-five billion, seven hundred eighty-nine million, two hundred eighty-nine thousand, six hundred".