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52155071 is a prime number
BaseRepresentation
bin1100011011110…
…1001010111111
310122010202022022
43012331022333
5101322430241
65101510355
71202211413
oct306751277
9118122268
1052155071
1127492971
12155723bb
13aa612b7
146cd8d43
1548a354b
hex31bd2bf

52155071 has 2 divisors, whose sum is σ = 52155072. Its totient is φ = 52155070.

The previous prime is 52155049. The next prime is 52155097. The reversal of 52155071 is 17055125.

It is a happy number.

It is an a-pointer prime, because the next prime (52155097) can be obtained adding 52155071 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52155071 - 214 = 52138687 is a prime.

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 52155071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52155041) 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 as a sum of consecutive naturals, namely, 26077535 + 26077536.

It is an arithmetic number, because the mean of its divisors is an integer number (26077536).

Almost surely, 252155071 is an apocalyptic number.

52155071 is a deficient number, since it is larger than the sum of its proper divisors (1).

52155071 is an equidigital number, since it uses as much as digits as its factorization.

52155071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 52155071 is about 7221.8467859683. The cubic root of 52155071 is about 373.6217758301.

The spelling of 52155071 in words is "fifty-two million, one hundred fifty-five thousand, seventy-one".