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25275025055 = 57874782559
BaseRepresentation
bin10111100010100000…
…100100011010011111
32102020110102022021002
4113202200210122133
5403230401300210
615340003300515
71553224111460
oct274240443237
972213368232
1025275025055
11a7a0102465
124a9467a73b
1324ca4cb637
14131aad8d67
159cddeb4a5
hex5e282469f

25275025055 has 16 divisors (see below), whose sum is σ = 34667274240. Its totient is φ = 17329254432.

The previous prime is 25275025033. The next prime is 25275025067. The reversal of 25275025055 is 55052057252.

It is not a de Polignac number, because 25275025055 - 26 = 25275024991 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 264866 + ... + 347424.

It is an arithmetic number, because the mean of its divisors is an integer number (2166704640).

Almost surely, 225275025055 is an apocalyptic number.

25275025055 is a deficient number, since it is larger than the sum of its proper divisors (9392249185).

25275025055 is an equidigital number, since it uses as much as digits as its factorization.

25275025055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91318.

The product of its (nonzero) digits is 175000, while the sum is 38.

The spelling of 25275025055 in words is "twenty-five billion, two hundred seventy-five million, twenty-five thousand, fifty-five".

Divisors: 1 5 7 35 8747 43735 61229 82559 306145 412795 577913 2889565 722143573 3610717865 5055005011 25275025055