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89525 = 523581
BaseRepresentation
bin10101110110110101
311112210202
4111312311
510331100
61530245
7522002
oct256665
9145722
1089525
1161297
1243985
1331997
14248a9
151b7d5
hex15db5

89525 has 6 divisors (see below), whose sum is σ = 111042. Its totient is φ = 71600.

The previous prime is 89521. The next prime is 89527. The reversal of 89525 is 52598.

It can be written as a sum of positive squares in 3 ways, for example, as 18769 + 70756 = 137^2 + 266^2 .

It is not a de Polignac number, because 89525 - 22 = 89521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1766 + ... + 1815.

It is an arithmetic number, because the mean of its divisors is an integer number (18507).

289525 is an apocalyptic number.

It is an amenable number.

89525 is a deficient number, since it is larger than the sum of its proper divisors (21517).

89525 is a wasteful number, since it uses less digits than its factorization.

89525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591 (or 3586 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 89525 is about 299.2072860075. The cubic root of 89525 is about 44.7350688303.

The spelling of 89525 in words is "eighty-nine thousand, five hundred twenty-five".

Divisors: 1 5 25 3581 17905 89525