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253039541 is a prime number
BaseRepresentation
bin11110001010100…
…01001110110101
3122122010201222212
433011101032311
51004234231131
641035303205
76161541416
oct1705211665
9578121885
10253039541
1111a91a397
12708aab05
1340568051
142586b80d
1517334a2b
hexf1513b5

253039541 has 2 divisors, whose sum is σ = 253039542. Its totient is φ = 253039540.

The previous prime is 253039519. The next prime is 253039561. The reversal of 253039541 is 145930352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169390225 + 83649316 = 13015^2 + 9146^2 .

It is a cyclic number.

It is not a de Polignac number, because 253039541 - 218 = 252777397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253039498 and 253039507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253039561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126519770 + 126519771.

It is an arithmetic number, because the mean of its divisors is an integer number (126519771).

Almost surely, 2253039541 is an apocalyptic number.

It is an amenable number.

253039541 is a deficient number, since it is larger than the sum of its proper divisors (1).

253039541 is an equidigital number, since it uses as much as digits as its factorization.

253039541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 253039541 is about 15907.2166327111. The cubic root of 253039541 is about 632.5033019143.

Adding to 253039541 its reverse (145930352), we get a palindrome (398969893).

The spelling of 253039541 in words is "two hundred fifty-three million, thirty-nine thousand, five hundred forty-one".