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25030225 = 521191019
BaseRepresentation
bin101111101111…
…0111001010001
31202002200000101
41133132321101
522401431400
62252252401
7422516263
oct137367121
952080011
1025030225
1113146640
128471101
135254bac
143477b33
1522e656a
hex17dee51

25030225 has 12 divisors (see below), whose sum is σ = 33859440. Its totient is φ = 18203600.

The previous prime is 25030223. The next prime is 25030259. The reversal of 25030225 is 52203052.

It is not a de Polignac number, because 25030225 - 21 = 25030223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25030223) 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, 45235 + ... + 45784.

It is an arithmetic number, because the mean of its divisors is an integer number (2821620).

Almost surely, 225030225 is an apocalyptic number.

25030225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25030225 is a deficient number, since it is larger than the sum of its proper divisors (8829215).

25030225 is a wasteful number, since it uses less digits than its factorization.

25030225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91040 (or 91035 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 25030225 is about 5003.0215870012. The cubic root of 25030225 is about 292.5195642793.

Adding to 25030225 its reverse (52203052), we get a palindrome (77233277).

The spelling of 25030225 in words is "twenty-five million, thirty thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 275 91019 455095 1001209 2275475 5006045 25030225