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75825017 is a prime number
BaseRepresentation
bin1001000010011…
…11111101111001
312021200022100222
410201033331321
5123402400032
611305105425
71610334122
oct441177571
9167608328
1075825017
113988a504
1221488275
131292ac98
14a0db049
1569cba12
hex484ff79

75825017 has 2 divisors, whose sum is σ = 75825018. Its totient is φ = 75825016.

The previous prime is 75825011. The next prime is 75825019. The reversal of 75825017 is 71052857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41203561 + 34621456 = 6419^2 + 5884^2 .

It is an emirp because it is prime and its reverse (71052857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75825017 - 28 = 75824761 is a prime.

Together with 75825019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75825011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37912508 + 37912509.

It is an arithmetic number, because the mean of its divisors is an integer number (37912509).

Almost surely, 275825017 is an apocalyptic number.

It is an amenable number.

75825017 is a deficient number, since it is larger than the sum of its proper divisors (1).

75825017 is an equidigital number, since it uses as much as digits as its factorization.

75825017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 75825017 is about 8707.7561403613. The cubic root of 75825017 is about 423.2570221566.

The spelling of 75825017 in words is "seventy-five million, eight hundred twenty-five thousand, seventeen".