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36251225 = 521785297
BaseRepresentation
bin1000101001001…
…0011001011001
32112012202022222
42022102121121
533240014400
63332553425
7620062463
oct212223131
975182288
1036251225
111951009a
1210182875
13768343a
144b59133
1532b1185
hex2292659

36251225 has 12 divisors (see below), whose sum is σ = 47596284. Its totient is φ = 27294720.

The previous prime is 36251209. The next prime is 36251239. The reversal of 36251225 is 52215263.

It can be written as a sum of positive squares in 6 ways, for example, as 4857616 + 31393609 = 2204^2 + 5603^2 .

It is not a de Polignac number, because 36251225 - 24 = 36251209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36251194 and 36251203.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 42224 + ... + 43073.

It is an arithmetic number, because the mean of its divisors is an integer number (3966357).

Almost surely, 236251225 is an apocalyptic number.

It is an amenable number.

36251225 is a deficient number, since it is larger than the sum of its proper divisors (11345059).

36251225 is a wasteful number, since it uses less digits than its factorization.

36251225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85324 (or 85319 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 36251225 is about 6020.8990192495. The cubic root of 36251225 is about 330.9590253615.

Adding to 36251225 its reverse (52215263), we get a palindrome (88466488).

The spelling of 36251225 in words is "thirty-six million, two hundred fifty-one thousand, two hundred twenty-five".

Divisors: 1 5 17 25 85 425 85297 426485 1450049 2132425 7250245 36251225