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25938085 = 55187617
BaseRepresentation
bin110001011110…
…0100010100101
31210210210100211
41202330202211
523120004320
62323535421
7433320145
oct142744245
953723324
1025938085
1113706738
12882a571
1354b21a4
143632925
15242555a
hex18bc8a5

25938085 has 4 divisors (see below), whose sum is σ = 31125708. Its totient is φ = 20750464.

The previous prime is 25938079. The next prime is 25938137. The reversal of 25938085 is 58083952.

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 10556001 + 15382084 = 3249^2 + 3922^2 .

It is a cyclic number.

It is not a de Polignac number, because 25938085 - 25 = 25938053 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2593804 + ... + 2593813.

It is an arithmetic number, because the mean of its divisors is an integer number (7781427).

Almost surely, 225938085 is an apocalyptic number.

It is an amenable number.

25938085 is a deficient number, since it is larger than the sum of its proper divisors (5187623).

25938085 is an equidigital number, since it uses as much as digits as its factorization.

25938085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187622.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 25938085 is about 5092.9446295832. The cubic root of 25938085 is about 296.0142623089.

The spelling of 25938085 in words is "twenty-five million, nine hundred thirty-eight thousand, eighty-five".

Divisors: 1 5 5187617 25938085