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25068541 = 89281669
BaseRepresentation
bin101111110100…
…0001111111101
31202011121120111
41133220033331
522404143131
62253150021
7423036061
oct137501775
952147514
1025068541
1113172403
12848b311
135269474
143487aa1
152302ab1
hex17e83fd

25068541 has 4 divisors (see below), whose sum is σ = 25350300. Its totient is φ = 24786784.

The previous prime is 25068539. The next prime is 25068587. The reversal of 25068541 is 14586052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2544025 + 22524516 = 1595^2 + 4746^2 .

It is a cyclic number.

It is not a de Polignac number, because 25068541 - 21 = 25068539 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 (25068521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140746 + ... + 140923.

It is an arithmetic number, because the mean of its divisors is an integer number (6337575).

Almost surely, 225068541 is an apocalyptic number.

It is an amenable number.

25068541 is a deficient number, since it is larger than the sum of its proper divisors (281759).

25068541 is an equidigital number, since it uses as much as digits as its factorization.

25068541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281758.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 25068541 is about 5006.8494085602. The cubic root of 25068541 is about 292.6687501185.

The spelling of 25068541 in words is "twenty-five million, sixty-eight thousand, five hundred forty-one".

Divisors: 1 89 281669 25068541