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52417531 is a prime number
BaseRepresentation
bin1100011111110…
…1001111111011
310122122002100001
43013331033323
5101404330111
65111253431
71204353535
oct307751773
9118562301
1052417531
1127652081
121567a277
13ab238ba
146d66855
1549061c1
hex31fd3fb

52417531 has 2 divisors, whose sum is σ = 52417532. Its totient is φ = 52417530.

The previous prime is 52417513. The next prime is 52417597. The reversal of 52417531 is 13571425.

It is a happy number.

Together with previous prime (52417513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52417531 - 25 = 52417499 is a prime.

It is a super-2 number, since 2×524175312 = 5495195112271922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52417531.

It is not a weakly prime, because it can be changed into another prime (52417501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26208765 + 26208766.

It is an arithmetic number, because the mean of its divisors is an integer number (26208766).

Almost surely, 252417531 is an apocalyptic number.

52417531 is a deficient number, since it is larger than the sum of its proper divisors (1).

52417531 is an equidigital number, since it uses as much as digits as its factorization.

52417531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 28.

The square root of 52417531 is about 7239.9952348051. The cubic root of 52417531 is about 374.2474531760.

Adding to 52417531 its reverse (13571425), we get a palindrome (65988956).

The spelling of 52417531 in words is "fifty-two million, four hundred seventeen thousand, five hundred thirty-one".