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52031225 = 522081249
BaseRepresentation
bin1100011001111…
…0111011111001
310121220110102102
43012132323321
5101304444400
65055113145
71201154351
oct306367371
9117813372
1052031225
1127408914
12155127b5
13aa19b0c
146ca5b61
15487b9d5
hex319eef9

52031225 has 6 divisors (see below), whose sum is σ = 64518750. Its totient is φ = 41624960.

The previous prime is 52031207. The next prime is 52031227. The reversal of 52031225 is 52213025.

It can be written as a sum of positive squares in 3 ways, for example, as 12931216 + 39100009 = 3596^2 + 6253^2 .

It is a de Polignac number, because none of the positive numbers 2k-52031225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52031197 and 52031206.

It is not an unprimeable number, because it can be changed into a prime (52031227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1040600 + ... + 1040649.

It is an arithmetic number, because the mean of its divisors is an integer number (10753125).

Almost surely, 252031225 is an apocalyptic number.

It is an amenable number.

52031225 is a deficient number, since it is larger than the sum of its proper divisors (12487525).

52031225 is a wasteful number, since it uses less digits than its factorization.

52031225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081259 (or 2081254 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52031225 is about 7213.2672902091. The cubic root of 52031225 is about 373.3258107718.

The spelling of 52031225 in words is "fifty-two million, thirty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 2081249 10406245 52031225