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25085125 = 531343359
BaseRepresentation
bin101111110110…
…0010011000101
31202012110022201
41133230103011
522410211000
62253354501
7423135322
oct137542305
952173281
1025085125
111318390a
128498a31
135273b90
14348db49
15230796a
hex17ec4c5

25085125 has 32 divisors (see below), whose sum is σ = 34594560. Its totient is φ = 18043200.

The previous prime is 25085117. The next prime is 25085131. The reversal of 25085125 is 52158052.

It is not a de Polignac number, because 25085125 - 23 = 25085117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25085093 and 25085102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69696 + ... + 70054.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 225085125 is an apocalyptic number.

25085125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25085125 is a deficient number, since it is larger than the sum of its proper divisors (9509435).

25085125 is a wasteful number, since it uses less digits than its factorization.

25085125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 25085125 is about 5008.5052660450. The cubic root of 25085125 is about 292.7332738662.

The spelling of 25085125 in words is "twenty-five million, eighty-five thousand, one hundred twenty-five".

Divisors: 1 5 13 25 43 65 125 215 325 359 559 1075 1625 1795 2795 4667 5375 8975 13975 15437 23335 44875 69875 77185 116675 200681 385925 583375 1003405 1929625 5017025 25085125