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25020233 = 72510617
BaseRepresentation
bin101111101110…
…0011101001001
31202002011022022
41133130131021
522401121413
62252134225
7422445200
oct137343511
952064268
1025020233
111313a087
128467375
135250494
143474237
1522e3608
hex17dc749

25020233 has 6 divisors (see below), whose sum is σ = 29105226. Its totient is φ = 21445872.

The previous prime is 25020227. The next prime is 25020257. The reversal of 25020233 is 33202052.

It can be written as a sum of positive squares in only one way, i.e., 16540489 + 8479744 = 4067^2 + 2912^2 .

It is not a de Polignac number, because 25020233 - 24 = 25020217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25020223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 255260 + ... + 255357.

It is an arithmetic number, because the mean of its divisors is an integer number (4850871).

Almost surely, 225020233 is an apocalyptic number.

It is an amenable number.

25020233 is a deficient number, since it is larger than the sum of its proper divisors (4084993).

25020233 is an equidigital number, since it uses as much as digits as its factorization.

25020233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510631 (or 510624 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 25020233 is about 5002.0228907913. The cubic root of 25020233 is about 292.4806347517.

Adding to 25020233 its reverse (33202052), we get a palindrome (58222285).

The spelling of 25020233 in words is "twenty-five million, twenty thousand, two hundred thirty-three".

Divisors: 1 7 49 510617 3574319 25020233