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52267181 is a prime number
BaseRepresentation
bin1100011101100…
…0100010101101
310122100110002112
43013120202231
5101340022211
65104133405
71203156311
oct307304255
9118313075
1052267181
112755a11a
1215607265
13aaa0335
146d27b41
1548c688b
hex31d88ad

52267181 has 2 divisors, whose sum is σ = 52267182. Its totient is φ = 52267180.

The previous prime is 52267153. The next prime is 52267211. The reversal of 52267181 is 18176225.

52267181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42445225 + 9821956 = 6515^2 + 3134^2 .

It is a cyclic number.

It is not a de Polignac number, because 52267181 - 214 = 52250797 is a prime.

It is a super-2 number, since 2×522671812 = 5463716419373522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52267121) by changing a digit.

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 as a sum of consecutive naturals, namely, 26133590 + 26133591.

It is an arithmetic number, because the mean of its divisors is an integer number (26133591).

Almost surely, 252267181 is an apocalyptic number.

It is an amenable number.

52267181 is a deficient number, since it is larger than the sum of its proper divisors (1).

52267181 is an equidigital number, since it uses as much as digits as its factorization.

52267181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 52267181 is about 7229.6044843408. The cubic root of 52267181 is about 373.8892906324.

The spelling of 52267181 in words is "fifty-two million, two hundred sixty-seven thousand, one hundred eighty-one".