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75000007 is a prime number
BaseRepresentation
bin1000111100001…
…10100011000111
312020010101200001
410132012203013
5123200000012
611235302131
71600326625
oct436064307
9166111601
1075000007
1139376685
122114a947
13126cc604
149d64515
1568b7357
hex47868c7

75000007 has 2 divisors, whose sum is σ = 75000008. Its totient is φ = 75000006.

The previous prime is 74999959. The next prime is 75000017. The reversal of 75000007 is 70000057.

It is a strong prime.

It is an emirp because it is prime and its reverse (70000057) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75000007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75000017) 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, 37500003 + 37500004.

It is an arithmetic number, because the mean of its divisors is an integer number (37500004).

Almost surely, 275000007 is an apocalyptic number.

75000007 is a deficient number, since it is larger than the sum of its proper divisors (1).

75000007 is an equidigital number, since it uses as much as digits as its factorization.

75000007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 245, while the sum is 19.

The square root of 75000007 is about 8660.2544419896. The cubic root of 75000007 is about 421.7163457709.

The spelling of 75000007 in words is "seventy-five million, seven", and thus it is an aban number and an uban number.