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25880125 = 53207041
BaseRepresentation
bin110001010111…
…0011000111101
31210200211212011
41202232120331
523111131000
62322411221
7432656155
oct142563075
953624764
1025880125
1113677137
128800b11
1354919ab
143619765
1524132ba
hex18ae63d

25880125 has 8 divisors (see below), whose sum is σ = 32298552. Its totient is φ = 20704000.

The previous prime is 25880123. The next prime is 25880159. The reversal of 25880125 is 52108852.

It can be written as a sum of positive squares in 4 ways, for example, as 749956 + 25130169 = 866^2 + 5013^2 .

It is not a de Polignac number, because 25880125 - 21 = 25880123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25880123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103396 + ... + 103645.

It is an arithmetic number, because the mean of its divisors is an integer number (4037319).

Almost surely, 225880125 is an apocalyptic number.

25880125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25880125 is a deficient number, since it is larger than the sum of its proper divisors (6418427).

25880125 is an equidigital number, since it uses as much as digits as its factorization.

25880125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207056 (or 207046 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 25880125 is about 5087.2512224186. The cubic root of 25880125 is about 295.7936114535.

Adding to 25880125 its reverse (52108852), we get a palindrome (77988977).

The spelling of 25880125 in words is "twenty-five million, eight hundred eighty thousand, one hundred twenty-five".

Divisors: 1 5 25 125 207041 1035205 5176025 25880125