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253088489 is a prime number
BaseRepresentation
bin11110001010111…
…01001011101001
3122122020020010202
433011131023221
51004242312424
641040321545
76162134213
oct1705351351
9578206122
10253088489
1111a953145
12709132b5
1340584404
14258815b3
15173442ae
hexf15d2e9

253088489 has 2 divisors, whose sum is σ = 253088490. Its totient is φ = 253088488.

The previous prime is 253088477. The next prime is 253088509. The reversal of 253088489 is 984880352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253064464 + 24025 = 15908^2 + 155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-253088489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253088789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126544244 + 126544245.

It is an arithmetic number, because the mean of its divisors is an integer number (126544245).

Almost surely, 2253088489 is an apocalyptic number.

It is an amenable number.

253088489 is a deficient number, since it is larger than the sum of its proper divisors (1).

253088489 is an equidigital number, since it uses as much as digits as its factorization.

253088489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 253088489 is about 15908.7551052872. The cubic root of 253088489 is about 632.5440831237.

It can be divided in two parts, 2530 and 88489, that added together give a palindrome (91019).

The spelling of 253088489 in words is "two hundred fifty-three million, eighty-eight thousand, four hundred eighty-nine".