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52112225 = 52111771157
BaseRepresentation
bin1100011011001…
…0101101100001
310122001120112102
43012302231201
5101320042400
65100540145
71201642454
oct306625541
9118046472
1052112225
1127463760
1215551655
13aa47949
146cc749b
1548959d5
hex31b2b61

52112225 has 48 divisors (see below), whose sum is σ = 76173696. Its totient is φ = 34944000.

The previous prime is 52112219. The next prime is 52112251. The reversal of 52112225 is 52221125.

It is a happy number.

52112225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52112225 - 26 = 52112161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52112197 and 52112206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 331847 + ... + 332003.

It is an arithmetic number, because the mean of its divisors is an integer number (1586952).

Almost surely, 252112225 is an apocalyptic number.

52112225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52112225 is a deficient number, since it is larger than the sum of its proper divisors (24061471).

52112225 is a wasteful number, since it uses less digits than its factorization.

52112225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 261 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 52112225 is about 7218.8797607385. The cubic root of 52112225 is about 373.5194362497.

Subtracting 52112225 from its reverse (52221125), we obtain a square (108900 = 3302).

The spelling of 52112225 in words is "fifty-two million, one hundred twelve thousand, two hundred twenty-five".

Divisors: 1 5 11 17 25 55 71 85 157 187 275 355 425 781 785 935 1207 1727 1775 2669 3905 3925 4675 6035 8635 11147 13277 13345 19525 29359 30175 43175 55735 66385 66725 122617 146795 189499 278675 331925 613085 733975 947495 2084489 3065425 4737475 10422445 52112225