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25253241 = 3132347599
BaseRepresentation
bin110000001010…
…1010101111001
31202111222221020
41200111111321
522431100431
62301133053
7424435416
oct140252571
952458836
1025253241
1113289152
12855a189
135302560
1434d510d
15233c696
hex1815579

25253241 has 32 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 14524224.

The previous prime is 25253237. The next prime is 25253243. The reversal of 25253241 is 14235252.

It is not a de Polignac number, because 25253241 - 22 = 25253237 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25253243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41860 + ... + 42458.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 225253241 is an apocalyptic number.

It is an amenable number.

25253241 is a deficient number, since it is larger than the sum of its proper divisors (13453959).

25253241 is a wasteful number, since it uses less digits than its factorization.

25253241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its digits is 2400, while the sum is 24.

The square root of 25253241 is about 5025.2602917660. The cubic root of 25253241 is about 293.3857669985.

Adding to 25253241 its reverse (14235252), we get a palindrome (39488493).

The spelling of 25253241 in words is "twenty-five million, two hundred fifty-three thousand, two hundred forty-one".

Divisors: 1 3 13 23 39 47 69 141 299 599 611 897 1081 1797 1833 3243 7787 13777 14053 23361 28153 41331 42159 84459 179101 365989 537303 647519 1097967 1942557 8417747 25253241