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25852008 = 23372131989
BaseRepresentation
bin110001010011…
…1100001101000
31210122102021210
41202213201220
523104231013
62322033120
7432511200
oct142474150
953572253
1025852008
1113657aa6
1287a87a0
135481c60
14360d400
152409cc3
hex18a7868

25852008 has 192 divisors, whose sum is σ = 86184000. Its totient is φ = 6386688.

The previous prime is 25852007. The next prime is 25852009. The reversal of 25852008 is 80025852.

It is an interprime number because it is at equal distance from previous prime (25852007) and next prime (25852009).

It is not an unprimeable number, because it can be changed into a prime (25852003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290428 + ... + 290516.

It is an arithmetic number, because the mean of its divisors is an integer number (448875).

Almost surely, 225852008 is an apocalyptic number.

25852008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25852008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43092000).

25852008 is an abundant number, since it is smaller than the sum of its proper divisors (60331992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25852008 is a wasteful number, since it uses less digits than its factorization.

25852008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 25852008 is about 5084.4869947714. The cubic root of 25852008 is about 295.6864527403.

The spelling of 25852008 in words is "twenty-five million, eight hundred fifty-two thousand, eight".