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25128067 is a prime number
BaseRepresentation
bin101111111011…
…0110010000011
31202021122020011
41133312302003
522413044232
62254325351
7423404446
oct137666203
952248204
1025128067
11132030a8
1284b9857
13528a5a3
1434a165d
152315547
hex17f6c83

25128067 has 2 divisors, whose sum is σ = 25128068. Its totient is φ = 25128066.

The previous prime is 25128031. The next prime is 25128101. The reversal of 25128067 is 76082152.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25128067 is a prime.

It is not a weakly prime, because it can be changed into another prime (25128017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12564033 + 12564034.

It is an arithmetic number, because the mean of its divisors is an integer number (12564034).

Almost surely, 225128067 is an apocalyptic number.

25128067 is a deficient number, since it is larger than the sum of its proper divisors (1).

25128067 is an equidigital number, since it uses as much as digits as its factorization.

25128067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 25128067 is about 5012.7903407184. The cubic root of 25128067 is about 292.9002172386.

The spelling of 25128067 in words is "twenty-five million, one hundred twenty-eight thousand, sixty-seven".