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52789169 is a prime number
BaseRepresentation
bin1100100101011…
…1111110110001
310200022222010102
43021113332301
5102003223134
65123242145
71210462166
oct311277661
9120288112
1052789169
1127886314
1215819355
13ac23ac4
14702206d
15497b37e
hex3257fb1

52789169 has 2 divisors, whose sum is σ = 52789170. Its totient is φ = 52789168.

The previous prime is 52789133. The next prime is 52789171. The reversal of 52789169 is 96198725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45697600 + 7091569 = 6760^2 + 2663^2 .

It is a cyclic number.

It is not a de Polignac number, because 52789169 - 224 = 36011953 is a prime.

It is a super-2 number, since 2×527891692 = 5573392727421122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 52789171, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (52789109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26394584 + 26394585.

It is an arithmetic number, because the mean of its divisors is an integer number (26394585).

Almost surely, 252789169 is an apocalyptic number.

It is an amenable number.

52789169 is a deficient number, since it is larger than the sum of its proper divisors (1).

52789169 is an equidigital number, since it uses as much as digits as its factorization.

52789169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 47.

The square root of 52789169 is about 7265.6155279508. The cubic root of 52789169 is about 375.1298371151.

The spelling of 52789169 in words is "fifty-two million, seven hundred eighty-nine thousand, one hundred sixty-nine".