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25089066 = 2321393837
BaseRepresentation
bin101111110110…
…1010000101010
31202012122201200
41133231100222
522410322231
62253425030
7423152652
oct137552052
952178650
1025089066
1113186872
12849b176
135275902
143491362
152308be6
hex17ed42a

25089066 has 12 divisors (see below), whose sum is σ = 54359682. Its totient is φ = 8363016.

The previous prime is 25089041. The next prime is 25089073. The reversal of 25089066 is 66098052.

25089066 is a `hidden beast` number, since 2 + 508 + 90 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24710841 + 378225 = 4971^2 + 615^2 .

It is a super-2 number, since 2×250890662 = 1258922465504712, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25089066.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 696901 + ... + 696936.

Almost surely, 225089066 is an apocalyptic number.

25089066 is an abundant number, since it is smaller than the sum of its proper divisors (29270616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25089066 is a wasteful number, since it uses less digits than its factorization.

25089066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393845 (or 1393842 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 25089066 is about 5008.8986813470. The cubic root of 25089066 is about 292.7486030228.

The spelling of 25089066 in words is "twenty-five million, eighty-nine thousand, sixty-six".

Divisors: 1 2 3 6 9 18 1393837 2787674 4181511 8363022 12544533 25089066