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20044055525 = 5213234436053
BaseRepresentation
bin10010101010101110…
…000000001111100101
31220201220102112001212
4102222232000033211
5312022234234100
613112541401205
71306465442444
oct225256001745
956656375055
1020044055525
11855638a64a
123a74869205
131b758613b0
14d820b2d5b
157c4a6e635
hex4aab803e5

20044055525 has 48 divisors (see below), whose sum is σ = 27997958016. Its totient is φ = 14123915520.

The previous prime is 20044055431. The next prime is 20044055527. The reversal of 20044055525 is 52555044002.

It is not a de Polignac number, because 20044055525 - 222 = 20039861221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20044055491 and 20044055500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044055527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3308399 + ... + 3314451.

It is an arithmetic number, because the mean of its divisors is an integer number (583290792).

Almost surely, 220044055525 is an apocalyptic number.

20044055525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20044055525 is a deficient number, since it is larger than the sum of its proper divisors (7953902491).

20044055525 is a wasteful number, since it uses less digits than its factorization.

20044055525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6542 (or 6537 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

Adding to 20044055525 its reverse (52555044002), we get a palindrome (72599099527).

The spelling of 20044055525 in words is "twenty billion, forty-four million, fifty-five thousand, five hundred twenty-five".

Divisors: 1 5 13 23 25 65 115 299 325 443 575 1495 2215 5759 6053 7475 10189 11075 28795 30265 50945 78689 132457 139219 143975 151325 254725 393445 662285 696095 1809847 1967225 2681479 3311425 3480475 9049235 13407395 34859227 45246175 61674017 67036975 174296135 308370085 801762221 871480675 1541850425 4008811105 20044055525