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25868901 = 367179719
BaseRepresentation
bin110001010101…
…1101001100101
31210200021110110
41202223221211
523110301101
62322243233
7432611352
oct142535145
953607413
1025868901
1113669763
1287b6519
135489856
143615629
15240ecd6
hex18aba65

25868901 has 16 divisors (see below), whose sum is σ = 35251200. Its totient is φ = 16870128.

The previous prime is 25868893. The next prime is 25868971. The reversal of 25868901 is 10986852.

It is not a de Polignac number, because 25868901 - 23 = 25868893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25868901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25868971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35620 + ... + 36338.

It is an arithmetic number, because the mean of its divisors is an integer number (2203200).

Almost surely, 225868901 is an apocalyptic number.

It is an amenable number.

25868901 is a deficient number, since it is larger than the sum of its proper divisors (9382299).

25868901 is a wasteful number, since it uses less digits than its factorization.

25868901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 25868901 is about 5086.1479530191. The cubic root of 25868901 is about 295.7508441748.

The spelling of 25868901 in words is "twenty-five million, eight hundred sixty-eight thousand, nine hundred one".

Divisors: 1 3 67 179 201 537 719 2157 11993 35979 48173 128701 144519 386103 8622967 25868901