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80574517 is a prime number
BaseRepresentation
bin1001100110101…
…11100000110101
312121121121110101
410303113200311
5131111341032
611554554101
71665605062
oct463274065
9177547411
1080574517
1141533911
1222b98931
1313901a3a
14a9b5c69
157118de7
hex4cd7835

80574517 has 2 divisors, whose sum is σ = 80574518. Its totient is φ = 80574516.

The previous prime is 80574479. The next prime is 80574541. The reversal of 80574517 is 71547508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46771921 + 33802596 = 6839^2 + 5814^2 .

It is a cyclic number.

It is not a de Polignac number, because 80574517 - 223 = 72185909 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 (80574017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40287258 + 40287259.

It is an arithmetic number, because the mean of its divisors is an integer number (40287259).

Almost surely, 280574517 is an apocalyptic number.

It is an amenable number.

80574517 is a deficient number, since it is larger than the sum of its proper divisors (1).

80574517 is an equidigital number, since it uses as much as digits as its factorization.

80574517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 80574517 is about 8976.3309319566. The cubic root of 80574517 is about 431.9159447945.

The spelling of 80574517 in words is "eighty million, five hundred seventy-four thousand, five hundred seventeen".