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253042325 = 5210121693
BaseRepresentation
bin11110001010100…
…01111010010101
3122122010212210222
433011101322111
51004234323300
641035324125
76161552504
oct1705217225
9578125728
10253042325
1111a921498
12708b0645
13405693b3
142586c83b
1517335785
hexf151e95

253042325 has 6 divisors (see below), whose sum is σ = 313772514. Its totient is φ = 202433840.

The previous prime is 253042319. The next prime is 253042333. The reversal of 253042325 is 523240352.

It can be written as a sum of positive squares in 3 ways, for example, as 677329 + 252364996 = 823^2 + 15886^2 .

It is not a de Polignac number, because 253042325 - 26 = 253042261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253042294 and 253042303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5060822 + ... + 5060871.

It is an arithmetic number, because the mean of its divisors is an integer number (52295419).

Almost surely, 2253042325 is an apocalyptic number.

253042325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253042325 is a deficient number, since it is larger than the sum of its proper divisors (60730189).

253042325 is a wasteful number, since it uses less digits than its factorization.

253042325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121703 (or 10121698 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 253042325 is about 15907.3041399226. The cubic root of 253042325 is about 632.5056215553.

Adding to 253042325 its reverse (523240352), we get a palindrome (776282677).

The spelling of 253042325 in words is "two hundred fifty-three million, forty-two thousand, three hundred twenty-five".

Divisors: 1 5 25 10121693 50608465 253042325