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195025525 = 5210971569
BaseRepresentation
bin10111001111111…
…01101001110101
3111120222022201121
423213331221311
5344411304100
631204023541
74555455352
oct1347755165
9446868647
10195025525
11a00a5622
1255391bb1
1331535026
141bc89629
15121c551a
hexb9fda75

195025525 has 12 divisors (see below), whose sum is σ = 244053700. Its totient is φ = 154586880.

The previous prime is 195025507. The next prime is 195025529. The reversal of 195025525 is 525520591.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2537649 + 192487876 = 1593^2 + 13874^2 .

It is not a de Polignac number, because 195025525 - 29 = 195025013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195025529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33060 + ... + 38509.

Almost surely, 2195025525 is an apocalyptic number.

It is an amenable number.

195025525 is a deficient number, since it is larger than the sum of its proper divisors (49028175).

195025525 is a wasteful number, since it uses less digits than its factorization.

195025525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71688 (or 71683 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 195025525 is about 13965.1539554707. The cubic root of 195025525 is about 579.9143006554.

The spelling of 195025525 in words is "one hundred ninety-five million, twenty-five thousand, five hundred twenty-five".

Divisors: 1 5 25 109 545 2725 71569 357845 1789225 7801021 39005105 195025525