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25923961 = 719194917
BaseRepresentation
bin110001011100…
…1000101111001
31210210001222201
41202321011321
523114031321
62323350201
7433231030
oct142710571
953701881
1025923961
11136a7068
128822361
1354a892b
14362b717
152421291
hex18b9179

25923961 has 8 divisors (see below), whose sum is σ = 31186880. Its totient is φ = 21050928.

The previous prime is 25923907. The next prime is 25923977. The reversal of 25923961 is 16932952.

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 25923961 - 211 = 25921913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25923961.

It is not an unprimeable number, because it can be changed into a prime (25923901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97326 + ... + 97591.

It is an arithmetic number, because the mean of its divisors is an integer number (3898360).

Almost surely, 225923961 is an apocalyptic number.

It is an amenable number.

25923961 is a deficient number, since it is larger than the sum of its proper divisors (5262919).

25923961 is a wasteful number, since it uses less digits than its factorization.

25923961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194943.

The product of its digits is 29160, while the sum is 37.

The square root of 25923961 is about 5091.5578166215. The cubic root of 25923961 is about 295.9605232537.

The spelling of 25923961 in words is "twenty-five million, nine hundred twenty-three thousand, nine hundred sixty-one".

Divisors: 1 7 19 133 194917 1364419 3703423 25923961