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25315055 = 540912379
BaseRepresentation
bin110000010010…
…0011011101111
31202122010201122
41200210123233
522440040210
62302331155
7425113553
oct140443357
952563648
1025315055
1113320637
128589abb
13532472c
14350d863
152350b55
hex18246ef

25315055 has 8 divisors (see below), whose sum is σ = 30454800. Its totient is φ = 20200896.

The previous prime is 25315039. The next prime is 25315063. The reversal of 25315055 is 55051352.

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 25315055 - 24 = 25315039 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4145 + ... + 8234.

It is an arithmetic number, because the mean of its divisors is an integer number (3806850).

Almost surely, 225315055 is an apocalyptic number.

25315055 is a deficient number, since it is larger than the sum of its proper divisors (5139745).

25315055 is a wasteful number, since it uses less digits than its factorization.

25315055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12793.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 25315055 is about 5031.4068609088. The cubic root of 25315055 is about 293.6249517546.

The spelling of 25315055 in words is "twenty-five million, three hundred fifteen thousand, fifty-five".

Divisors: 1 5 409 2045 12379 61895 5063011 25315055