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255125005 = 5145335117
BaseRepresentation
bin11110011010011…
…10011000001101
3122210001200201021
433031032120031
51010303000010
641152114141
76215345452
oct1715163015
9583050637
10255125005
11121014213
1271535951
1340b18355
1425c51829
15175e78da
hexf34e60d

255125005 has 8 divisors (see below), whose sum is σ = 306369432. Its totient is φ = 203953728.

The previous prime is 255124979. The next prime is 255125023. The reversal of 255125005 is 500521552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16144324 + 238980681 = 4018^2 + 15459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255125005 - 25 = 255124973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10294 + ... + 24823.

It is an arithmetic number, because the mean of its divisors is an integer number (38296179).

Almost surely, 2255125005 is an apocalyptic number.

It is an amenable number.

255125005 is a deficient number, since it is larger than the sum of its proper divisors (51244427).

255125005 is a wasteful number, since it uses less digits than its factorization.

255125005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36575.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 255125005 is about 15972.6330014810. The cubic root of 255125005 is about 634.2361741887.

Adding to 255125005 its reverse (500521552), we get a palindrome (755646557).

It can be divided in two parts, 2551 and 25005, that added together give a square (27556 = 1662).

The spelling of 255125005 in words is "two hundred fifty-five million, one hundred twenty-five thousand, five".

Divisors: 1 5 1453 7265 35117 175585 51025001 255125005