Search a number
-
+
55214425200 = 243521143891093
BaseRepresentation
bin110011011011000010…
…010100010001110000
312021111222200102021010
4303123002110101300
51401034343101300
641210512430520
73663156604404
oct633302242160
9167458612233
1055214425200
1121464115970
12a84b248440
13528c16671c
14295b08b104
151682554a50
hexcdb094470

55214425200 has 480 divisors, whose sum is σ = 199837566720. Its totient is φ = 12915302400.

The previous prime is 55214425199. The next prime is 55214425219. The reversal of 55214425200 is 252441255.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50515854 + ... + 50516946.

It is an arithmetic number, because the mean of its divisors is an integer number (416328264).

Almost surely, 255214425200 is an apocalyptic number.

55214425200 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 55214425200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99918783360).

55214425200 is an abundant number, since it is smaller than the sum of its proper divisors (144623141520).

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

55214425200 is a wasteful number, since it uses less digits than its factorization.

55214425200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 55214425200 its reverse (252441255), we get a palindrome (55466866455).

The spelling of 55214425200 in words is "fifty-five billion, two hundred fourteen million, four hundred twenty-five thousand, two hundred".