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57572201 is a prime number
BaseRepresentation
bin1101101110011…
…1101101101001
311000022222012202
43123213231221
5104214302301
65413545545
71266232661
oct333475551
9130288182
1057572201
112a552935
12173452b5
13bc09bbb
1479091a1
1550c366b
hex36e7b69

57572201 has 2 divisors, whose sum is σ = 57572202. Its totient is φ = 57572200.

The previous prime is 57572191. The next prime is 57572209. The reversal of 57572201 is 10227575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38875225 + 18696976 = 6235^2 + 4324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57572201 is a prime.

It is equal to p3426527 and since 57572201 and 3426527 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (57572209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28786100 + 28786101.

It is an arithmetic number, because the mean of its divisors is an integer number (28786101).

Almost surely, 257572201 is an apocalyptic number.

It is an amenable number.

57572201 is a deficient number, since it is larger than the sum of its proper divisors (1).

57572201 is an equidigital number, since it uses as much as digits as its factorization.

57572201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 57572201 is about 7587.6347434494. The cubic root of 57572201 is about 386.1336150498.

Adding to 57572201 its reverse (10227575), we get a palindrome (67799776).

The spelling of 57572201 in words is "fifty-seven million, five hundred seventy-two thousand, two hundred one".