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250025 = 5273137
BaseRepresentation
bin111101000010101001
3110200222012
4331002221
531000100
65205305
72060636
oct750251
9420865
10250025
11160936
12100835
1389a59
146718d
154e135
hex3d0a9

250025 has 12 divisors (see below), whose sum is σ = 316572. Its totient is φ = 195840.

The previous prime is 250013. The next prime is 250027. The reversal of 250025 is 520052.

250025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1024 + 249001 = 32^2 + 499^2 .

It is not a de Polignac number, because 250025 - 214 = 233641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249991 and 250009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1757 + ... + 1893.

It is an arithmetic number, because the mean of its divisors is an integer number (26381).

250025 is a Friedman number, since it can be written as 500^2+5^2, using all its digits and the basic arithmetic operations.

2250025 is an apocalyptic number.

250025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250025 is a deficient number, since it is larger than the sum of its proper divisors (66547).

250025 is a wasteful number, since it uses less digits than its factorization.

250025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 250025 is about 500.0249993750. The cubic root of 250025 is about 62.9981522932.

Adding to 250025 its reverse (520052), we get a palindrome (770077).

It can be divided in two parts, 2500 and 25, that multiplied together give a square (62500 = 2502).

The spelling of 250025 in words is "two hundred fifty thousand, twenty-five".

Divisors: 1 5 25 73 137 365 685 1825 3425 10001 50005 250025