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52485481 is a prime number
BaseRepresentation
bin1100100000110…
…1110101101001
310122202112112201
43020031311221
5101414013411
65112540201
71205055616
oct310156551
9118675481
1052485481
1127699134
12156b1661
13ab487c9
146d8350d
15491b3c1
hex320dd69

52485481 has 2 divisors, whose sum is σ = 52485482. Its totient is φ = 52485480.

The previous prime is 52485479. The next prime is 52485491. The reversal of 52485481 is 18458425.

52485481 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., 44555625 + 7929856 = 6675^2 + 2816^2 .

It is a cyclic number.

It is not a de Polignac number, because 52485481 - 21 = 52485479 is a prime.

It is a super-2 number, since 2×524854812 = 5509451431602722, which contains 22 as substring.

Together with 52485479, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52485481.

It is not a weakly prime, because it can be changed into another prime (52485421) 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, 26242740 + 26242741.

It is an arithmetic number, because the mean of its divisors is an integer number (26242741).

Almost surely, 252485481 is an apocalyptic number.

It is an amenable number.

52485481 is a deficient number, since it is larger than the sum of its proper divisors (1).

52485481 is an equidigital number, since it uses as much as digits as its factorization.

52485481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51200, while the sum is 37.

The square root of 52485481 is about 7244.6863976296. The cubic root of 52485481 is about 374.4090984203.

The spelling of 52485481 in words is "fifty-two million, four hundred eighty-five thousand, four hundred eighty-one".