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25003225 = 5213107719
BaseRepresentation
bin101111101100…
…0010011011001
31202001021222101
41133120103121
522400100400
62251523401
7422344462
oct137302331
952037871
1025003225
1113128325
128459561
135245810
14346bd69
1522dd56a
hex17d84d9

25003225 has 24 divisors (see below), whose sum is σ = 33747840. Its totient is φ = 18265920.

The previous prime is 25003217. The next prime is 25003247. The reversal of 25003225 is 52230052.

It is not a de Polignac number, because 25003225 - 23 = 25003217 is a prime.

It is a super-2 number, since 2×250032252 = 1250322520801250, which contains 22 as substring.

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, 34416 + ... + 35134.

It is an arithmetic number, because the mean of its divisors is an integer number (1406160).

Almost surely, 225003225 is an apocalyptic number.

25003225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25003225 is a deficient number, since it is larger than the sum of its proper divisors (8744615).

25003225 is a wasteful number, since it uses less digits than its factorization.

25003225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849 (or 844 counting only the distinct ones).

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

The square root of 25003225 is about 5000.3224896000. The cubic root of 25003225 is about 292.4143465569.

Adding to 25003225 its reverse (52230052), we get a palindrome (77233277).

The spelling of 25003225 in words is "twenty-five million, three thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 107 325 535 719 1391 2675 3595 6955 9347 17975 34775 46735 76933 233675 384665 1000129 1923325 5000645 25003225