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65025251 is a prime number
BaseRepresentation
bin1111100000001…
…1010011100011
311112100121212122
43320003103203
5113121302001
610241414455
71416463664
oct370032343
9145317778
1065025251
1133783485
121993a42b
13106193a5
1488c936b
155a96b1b
hex3e034e3

65025251 has 2 divisors, whose sum is σ = 65025252. Its totient is φ = 65025250.

The previous prime is 65025229. The next prime is 65025263. The reversal of 65025251 is 15252056.

65025251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-65025251 is a prime.

It is a super-2 number, since 2×650252512 = 8456566535226002, which contains 22 as substring.

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 65025251.

It is not a weakly prime, because it can be changed into another prime (65325251) 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, 32512625 + 32512626.

It is an arithmetic number, because the mean of its divisors is an integer number (32512626).

Almost surely, 265025251 is an apocalyptic number.

65025251 is a deficient number, since it is larger than the sum of its proper divisors (1).

65025251 is an equidigital number, since it uses as much as digits as its factorization.

65025251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 65025251 is about 8063.8235967809. The cubic root of 65025251 is about 402.1246344240.

The spelling of 65025251 in words is "sixty-five million, twenty-five thousand, two hundred fifty-one".