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25085005 = 511456091
BaseRepresentation
bin101111110110…
…0010001001101
31202012110011021
41133230101031
522410210010
62253354141
7423135061
oct137542115
952173137
1025085005
1113183810
128498951
135273aca
14348daa1
1523078da
hex17ec44d

25085005 has 8 divisors (see below), whose sum is σ = 32838624. Its totient is φ = 18243600.

The previous prime is 25085003. The next prime is 25085009. The reversal of 25085005 is 50058052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25085005 - 21 = 25085003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25085003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227991 + ... + 228100.

It is an arithmetic number, because the mean of its divisors is an integer number (4104828).

Almost surely, 225085005 is an apocalyptic number.

It is an amenable number.

25085005 is a deficient number, since it is larger than the sum of its proper divisors (7753619).

25085005 is a wasteful number, since it uses less digits than its factorization.

25085005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456107.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 25085005 is about 5008.4932864086. The cubic root of 25085005 is about 292.7328070817.

The spelling of 25085005 in words is "twenty-five million, eighty-five thousand, five".

Divisors: 1 5 11 55 456091 2280455 5017001 25085005