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25961201 = 719195197
BaseRepresentation
bin110001100001…
…0001011110001
31210211222001222
41203002023301
523121224301
62324234425
7433444430
oct143021361
953758058
1025961201
1113722042
12883ba15
1354bc876
14363b117
15242c31b
hex18c22f1

25961201 has 8 divisors (see below), whose sum is σ = 31231680. Its totient is φ = 21081168.

The previous prime is 25961191. The next prime is 25961203. The reversal of 25961201 is 10216952.

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

It is a cyclic number.

It is not a de Polignac number, because 25961201 - 26 = 25961137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25961203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97466 + ... + 97731.

It is an arithmetic number, because the mean of its divisors is an integer number (3903960).

Almost surely, 225961201 is an apocalyptic number.

It is an amenable number.

25961201 is a deficient number, since it is larger than the sum of its proper divisors (5270479).

25961201 is a wasteful number, since it uses less digits than its factorization.

25961201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195223.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 25961201 is about 5095.2135382141. The cubic root of 25961201 is about 296.1021720880.

It can be divided in two parts, 25961 and 201, that added together give a palindrome (26162).

The spelling of 25961201 in words is "twenty-five million, nine hundred sixty-one thousand, two hundred one".

Divisors: 1 7 19 133 195197 1366379 3708743 25961201