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255315001 is a prime number
BaseRepresentation
bin11110011011111…
…00110000111001
3122210102100100011
433031330300321
51010330040001
641200141521
76220066414
oct1715746071
9583370304
10255315001
11121133a37
12716078a1
1340b83986
1425ca0b7b
1517633d51
hexf37cc39

255315001 has 2 divisors, whose sum is σ = 255315002. Its totient is φ = 255315000.

The previous prime is 255314953. The next prime is 255315023. The reversal of 255315001 is 100513552.

It is an a-pointer prime, because the next prime (255315023) can be obtained adding 255315001 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253287225 + 2027776 = 15915^2 + 1424^2 .

It is a cyclic number.

It is not a de Polignac number, because 255315001 - 221 = 253217849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255315041) 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, 127657500 + 127657501.

It is an arithmetic number, because the mean of its divisors is an integer number (127657501).

Almost surely, 2255315001 is an apocalyptic number.

It is an amenable number.

255315001 is a deficient number, since it is larger than the sum of its proper divisors (1).

255315001 is an equidigital number, since it uses as much as digits as its factorization.

255315001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 255315001 is about 15978.5794424911. The cubic root of 255315001 is about 634.3935773346.

Adding to 255315001 its reverse (100513552), we get a palindrome (355828553).

The spelling of 255315001 in words is "two hundred fifty-five million, three hundred fifteen thousand, one".