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25708285 = 510349919
BaseRepresentation
bin110001000010…
…0011011111101
31210101010010201
41202010123331
523040131120
62315003501
7431342161
oct142043375
953333121
1025708285
111356a019
128739591
135431705
1435b2ca1
1523cc40a
hex18846fd

25708285 has 8 divisors (see below), whose sum is σ = 31150080. Its totient is φ = 20366544.

The previous prime is 25708283. The next prime is 25708343. The reversal of 25708285 is 58280752.

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 25708285 - 21 = 25708283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25708283) 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 7 ways as a sum of consecutive naturals, for example, 24445 + ... + 25474.

It is an arithmetic number, because the mean of its divisors is an integer number (3893760).

Almost surely, 225708285 is an apocalyptic number.

It is an amenable number.

25708285 is a deficient number, since it is larger than the sum of its proper divisors (5441795).

25708285 is a wasteful number, since it uses less digits than its factorization.

25708285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50027.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 25708285 is about 5070.3338154406. Note that the first 3 decimals coincide. The cubic root of 25708285 is about 295.1374825993.

The spelling of 25708285 in words is "twenty-five million, seven hundred eight thousand, two hundred eighty-five".

Divisors: 1 5 103 515 49919 249595 5141657 25708285