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55422020025 = 32521765322189
BaseRepresentation
bin110011100111011010…
…001110100110111001
312022001110022022211100
4303213122032212321
51402001014120100
641243250122013
74001260253211
oct634732164671
9168043268740
1055422020025
1121560315a39
12a8a8880309
1352c317c8b8
14297a889241
1516958ae400
hexce768e9b9

55422020025 has 72 divisors (see below), whose sum is σ = 105271934040. Its totient is φ = 27775825920.

The previous prime is 55422020011. The next prime is 55422020033. The reversal of 55422020025 is 52002022455.

It can be written as a sum of positive squares in 12 ways, for example, as 10143712656 + 45278307369 = 100716^2 + 212787^2 .

It is not a de Polignac number, because 55422020025 - 25 = 55422019993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2486631 + ... + 2508819.

It is an arithmetic number, because the mean of its divisors is an integer number (1462110195).

Almost surely, 255422020025 is an apocalyptic number.

It is an amenable number.

55422020025 is a deficient number, since it is larger than the sum of its proper divisors (49849914015).

55422020025 is a wasteful number, since it uses less digits than its factorization.

55422020025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22875 (or 22867 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The spelling of 55422020025 in words is "fifty-five billion, four hundred twenty-two million, twenty thousand, twenty-five".

Divisors: 1 3 5 9 15 17 25 45 51 75 85 153 225 255 425 653 765 1275 1959 3265 3825 5877 9795 11101 16325 22189 29385 33303 48975 55505 66567 99909 110945 146925 166515 199701 277525 332835 377213 499545 554725 832575 998505 1131639 1664175 1886065 2497725 3394917 4992525 5658195 9430325 14489417 16974585 28290975 43468251 72447085 84872925 130404753 217341255 246320089 362235425 652023765 738960267 1086706275 1231600445 2216880801 3260118825 3694801335 6158002225 11084404005 18474006675 55422020025