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25800485 = 513937123
BaseRepresentation
bin110001001101…
…0111100100101
31210112210121112
41202122330211
523101103420
62320554405
7432205034
oct142327445
953483545
1025800485
1113622317
128782a05
135464679
1435d871b
1523e98c5
hex189af25

25800485 has 8 divisors (see below), whose sum is σ = 31184160. Its totient is φ = 20491344.

The previous prime is 25800449. The next prime is 25800493. The reversal of 25800485 is 58400852.

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 25800485 - 218 = 25538341 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17867 + ... + 19256.

It is an arithmetic number, because the mean of its divisors is an integer number (3898020).

Almost surely, 225800485 is an apocalyptic number.

It is an amenable number.

25800485 is a deficient number, since it is larger than the sum of its proper divisors (5383675).

25800485 is a wasteful number, since it uses less digits than its factorization.

25800485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37267.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 25800485 is about 5079.4177815966. The cubic root of 25800485 is about 295.4898879292.

The spelling of 25800485 in words is "twenty-five million, eight hundred thousand, four hundred eighty-five".

Divisors: 1 5 139 695 37123 185615 5160097 25800485