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20050015632025 = 52802000625281
BaseRepresentation
bin1001000111100010000100…
…00011110011101010011001
32121222202121001200212101111
410203301002003303222121
510111444413000211100
6110350503334420321
74136365035622021
oct443610203635231
977882531625344
1020050015632025
116430189137715
1222b99b18016a1
13b25929367982
144d45d6a9aa81
1524b830cb76ba
hex123c420f3a99

20050015632025 has 6 divisors (see below), whose sum is σ = 24862019383742. Its totient is φ = 16040012505600.

The previous prime is 20050015631999. The next prime is 20050015632041. The reversal of 20050015632025 is 52023651005002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 863125641 + 20049152506384 = 29379^2 + 4477628^2 .

It is not a de Polignac number, because 20050015632025 - 25 = 20050015631993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401000312616 + ... + 401000312665.

Almost surely, 220050015632025 is an apocalyptic number.

20050015632025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20050015632025 is a deficient number, since it is larger than the sum of its proper divisors (4812003751717).

20050015632025 is an equidigital number, since it uses as much as digits as its factorization.

20050015632025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802000625291 (or 802000625286 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 20050015632025 its reverse (52023651005002), we get a palindrome (72073666637027).

The spelling of 20050015632025 in words is "twenty trillion, fifty billion, fifteen million, six hundred thirty-two thousand, twenty-five".

Divisors: 1 5 25 802000625281 4010003126405 20050015632025