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25214025 = 3522271481
BaseRepresentation
bin110000000101…
…1110001001001
31202110000010210
41200023301021
522423322100
62300231333
7424213164
oct140136111
952400123
1025214025
1113261741
12853b549
1352ba755
1434c4adb
152330c50
hex180bc49

25214025 has 24 divisors (see below), whose sum is σ = 41899104. Its totient is φ = 13379200.

The previous prime is 25214011. The next prime is 25214047. The reversal of 25214025 is 52041252.

It is a happy number.

It is not a de Polignac number, because 25214025 - 26 = 25213961 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25213992 and 25214010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16285 + ... + 17765.

It is an arithmetic number, because the mean of its divisors is an integer number (1745796).

Almost surely, 225214025 is an apocalyptic number.

25214025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25214025 is a deficient number, since it is larger than the sum of its proper divisors (16685079).

25214025 is a wasteful number, since it uses less digits than its factorization.

25214025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 25214025 is about 5021.3568883321. The cubic root of 25214025 is about 293.2338211288.

Adding to 25214025 its reverse (52041252), we get a palindrome (77255277).

The spelling of 25214025 in words is "twenty-five million, two hundred fourteen thousand, twenty-five".

Divisors: 1 3 5 15 25 75 227 681 1135 1481 3405 4443 5675 7405 17025 22215 37025 111075 336187 1008561 1680935 5042805 8404675 25214025