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53520411 = 372548591
BaseRepresentation
bin1100110000101…
…0100000011011
310201201010012110
43030022200123
5102200123121
65151043403
71216626120
oct314124033
9121633173
1053520411
112823574a
1215b10563
13b11b8a9
147172747
154a72d76
hex330a81b

53520411 has 8 divisors (see below), whose sum is σ = 81554944. Its totient is φ = 30583080.

The previous prime is 53520391. The next prime is 53520419. The reversal of 53520411 is 11402535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53520411 - 29 = 53519899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2548591 = 53520411 / (5 + 3 + 5 + 2 + 0 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53520419) 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 7 ways as a sum of consecutive naturals, for example, 1274275 + ... + 1274316.

It is an arithmetic number, because the mean of its divisors is an integer number (10194368).

Almost surely, 253520411 is an apocalyptic number.

53520411 is a deficient number, since it is larger than the sum of its proper divisors (28034533).

53520411 is a wasteful number, since it uses less digits than its factorization.

53520411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548601.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 53520411 is about 7315.7645533464. The cubic root of 53520411 is about 376.8540150138.

Adding to 53520411 its reverse (11402535), we get a palindrome (64922946).

The spelling of 53520411 in words is "fifty-three million, five hundred twenty thousand, four hundred eleven".

Divisors: 1 3 7 21 2548591 7645773 17840137 53520411