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2055122225 = 52136323453
BaseRepresentation
bin111101001111110…
…1010110100110001
312022020002000200222
41322133222310301
513202102402400
6535532222425
7101633151662
oct17237526461
95266060628
102055122225
11965076822
1249430aa15
13269a07070
14156d27369
15c0650185
hex7a7ead31

2055122225 has 12 divisors (see below), whose sum is σ = 2744379036. Its totient is φ = 1517628480.

The previous prime is 2055122183. The next prime is 2055122227. The reversal of 2055122225 is 5222215502.

It can be written as a sum of positive squares in 6 ways, for example, as 126067984 + 1929054241 = 11228^2 + 43921^2 .

It is not a de Polignac number, because 2055122225 - 212 = 2055118129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2055122194 and 2055122203.

It is not an unprimeable number, because it can be changed into a prime (2055122227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3161402 + ... + 3162051.

It is an arithmetic number, because the mean of its divisors is an integer number (228698253).

Almost surely, 22055122225 is an apocalyptic number.

2055122225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2055122225 is a deficient number, since it is larger than the sum of its proper divisors (689256811).

2055122225 is a wasteful number, since it uses less digits than its factorization.

2055122225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323476 (or 6323471 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2055122225 is about 45333.4559128245. The cubic root of 2055122225 is about 1271.3912513168.

Adding to 2055122225 its reverse (5222215502), we get a palindrome (7277337727).

The spelling of 2055122225 in words is "two billion, fifty-five million, one hundred twenty-two thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 6323453 31617265 82204889 158086325 411024445 2055122225