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205625 = 54747
BaseRepresentation
bin110010001100111001
3101110001202
4302030321
523040000
64223545
71514330
oct621471
9343052
10205625
11130542
129abb5
1372794
1454d17
1540dd5
hex32339

205625 has 20 divisors (see below), whose sum is σ = 299904. Its totient is φ = 138000.

The previous prime is 205619. The next prime is 205627. The reversal of 205625 is 526502.

It is a happy number.

205625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205625 - 210 = 204601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 205597 and 205606.

It is not an unprimeable number, because it can be changed into a prime (205627) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4352 + ... + 4398.

2205625 is an apocalyptic number.

205625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205625 is a deficient number, since it is larger than the sum of its proper divisors (94279).

205625 is an frugal number, since it uses more digits than its factorization.

205625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 205625 is about 453.4589286804. The cubic root of 205625 is about 59.0235470504.

The spelling of 205625 in words is "two hundred five thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 47 125 175 235 329 625 875 1175 1645 4375 5875 8225 29375 41125 205625