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53163211 = 444111971
BaseRepresentation
bin1100101011001…
…1010011001011
310201000222012211
43022303103023
5102102210321
65135245551
71213610533
oct312632313
9121028184
1053163211
1128011342
12159798b7
13b02512a
1470bc4c3
154a020e1
hex32b34cb

53163211 has 4 divisors (see below), whose sum is σ = 53179624. Its totient is φ = 53146800.

The previous prime is 53163203. The next prime is 53163217. The reversal of 53163211 is 11236135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11236135 = 52247227.

It is a cyclic number.

It is not a de Polignac number, because 53163211 - 23 = 53163203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53163217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1545 + ... + 10426.

It is an arithmetic number, because the mean of its divisors is an integer number (13294906).

Almost surely, 253163211 is an apocalyptic number.

53163211 is a deficient number, since it is larger than the sum of its proper divisors (16413).

53163211 is a wasteful number, since it uses less digits than its factorization.

53163211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16412.

The product of its digits is 540, while the sum is 22.

The square root of 53163211 is about 7291.3106503564. The cubic root of 53163211 is about 376.0137571358.

Adding to 53163211 its reverse (11236135), we get a palindrome (64399346).

The spelling of 53163211 in words is "fifty-three million, one hundred sixty-three thousand, two hundred eleven".

Divisors: 1 4441 11971 53163211