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1066425587 is a prime number
BaseRepresentation
bin111111100100000…
…101110011110011
32202022200000212222
4333210011303303
54141001104322
6253453111255
735266316333
oct7744056363
92668600788
101066425587
114a7a73367
1225918852b
1313cc26a76
14a18bd0c3
1563952e42
hex3f905cf3

1066425587 has 2 divisors, whose sum is σ = 1066425588. Its totient is φ = 1066425586.

The previous prime is 1066425551. The next prime is 1066425599. The reversal of 1066425587 is 7855246601.

It is a strong prime.

It is an emirp because it is prime and its reverse (7855246601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066425587 - 216 = 1066360051 is a prime.

It is a super-2 number, since 2×10664255872 = 2274527065216589138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066427587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533212793 + 533212794.

It is an arithmetic number, because the mean of its divisors is an integer number (533212794).

Almost surely, 21066425587 is an apocalyptic number.

1066425587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066425587 is an equidigital number, since it uses as much as digits as its factorization.

1066425587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 1066425587 is about 32656.1722649793. The cubic root of 1066425587 is about 1021.6689283821.

The spelling of 1066425587 in words is "one billion, sixty-six million, four hundred twenty-five thousand, five hundred eighty-seven".