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68425501 is a prime number
BaseRepresentation
bin1000001010000…
…01011100011101
311202202101010211
410011001130131
5120004104001
610442332421
71460415154
oct405013435
9152671124
1068425501
1135696101
121aaba111
1311239c81
14913259b
156019351
hex414171d

68425501 has 2 divisors, whose sum is σ = 68425502. Its totient is φ = 68425500.

The previous prime is 68425481. The next prime is 68425519. The reversal of 68425501 is 10552486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66667225 + 1758276 = 8165^2 + 1326^2 .

It is a cyclic number.

It is not a de Polignac number, because 68425501 - 215 = 68392733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68425531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34212750 + 34212751.

It is an arithmetic number, because the mean of its divisors is an integer number (34212751).

Almost surely, 268425501 is an apocalyptic number.

It is an amenable number.

68425501 is a deficient number, since it is larger than the sum of its proper divisors (1).

68425501 is an equidigital number, since it uses as much as digits as its factorization.

68425501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 68425501 is about 8271.9708050742. The cubic root of 68425501 is about 409.0150878276.

Adding to 68425501 its reverse (10552486), we get a palindrome (78977987).

The spelling of 68425501 in words is "sixty-eight million, four hundred twenty-five thousand, five hundred one".