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55202054124 = 22374159317857
BaseRepresentation
bin110011011010010011…
…000111111111101100
312021111010101220100010
4303122103013333230
51401023211212444
641205351333220
73662646501210
oct633223077754
9167433356303
1055202054124
1121458136338
12a847081210
135289724869
14295958a940
15168140e2b9
hexcda4c7fec

55202054124 has 192 divisors, whose sum is σ = 154014981120. Its totient is φ = 15061217280.

The previous prime is 55202054053. The next prime is 55202054147. The reversal of 55202054124 is 42145020255.

It is a junction number, because it is equal to n+sod(n) for n = 55202054091 and 55202054100.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64412704 + ... + 64413560.

It is an arithmetic number, because the mean of its divisors is an integer number (802161360).

Almost surely, 255202054124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55202054124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77007490560).

55202054124 is an abundant number, since it is smaller than the sum of its proper divisors (98812926996).

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

55202054124 is a wasteful number, since it uses less digits than its factorization.

55202054124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 1286 counting only the distinct ones).

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

Adding to 55202054124 its reverse (42145020255), we get a palindrome (97347074379).

The spelling of 55202054124 in words is "fifty-five billion, two hundred two million, fifty-four thousand, one hundred twenty-four".