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25142275 = 522934679
BaseRepresentation
bin101111111101…
…0010000000011
31202022100201101
41133322100003
522414023100
62254515231
7423464044
oct137722003
952270641
1025142275
1113212844
128505b17
135293bb2
1434a68cb
15231986a
hex17fa403

25142275 has 12 divisors (see below), whose sum is σ = 32252400. Its totient is φ = 19419680.

The previous prime is 25142251. The next prime is 25142281. The reversal of 25142275 is 57224152.

It is a de Polignac number, because none of the positive numbers 2k-25142275 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16615 + ... + 18064.

It is an arithmetic number, because the mean of its divisors is an integer number (2687700).

Almost surely, 225142275 is an apocalyptic number.

25142275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25142275 is a deficient number, since it is larger than the sum of its proper divisors (7110125).

25142275 is a wasteful number, since it uses less digits than its factorization.

25142275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34718 (or 34713 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 25142275 is about 5014.2073152194. The cubic root of 25142275 is about 292.9554110608.

The spelling of 25142275 in words is "twenty-five million, one hundred forty-two thousand, two hundred seventy-five".

Divisors: 1 5 25 29 145 725 34679 173395 866975 1005691 5028455 25142275