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53007563 = 7329732
BaseRepresentation
bin1100101000110…
…1010011001011
310200202001201002
43022031103023
5102032220223
65132045215
71212362000
oct312152313
9120661632
1053007563
1127a15404
121590380b
13ac9c32b
14707b8a7
1549c0e28
hex328d4cb

53007563 has 24 divisors (see below), whose sum is σ = 64836000. Its totient is φ = 43267392.

The previous prime is 53007557. The next prime is 53007589. The reversal of 53007563 is 36570035.

53007563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-53007563 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53007503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726095 + ... + 726167.

It is an arithmetic number, because the mean of its divisors is an integer number (2701500).

Almost surely, 253007563 is an apocalyptic number.

53007563 is a deficient number, since it is larger than the sum of its proper divisors (11828437).

53007563 is an frugal number, since it uses more digits than its factorization.

53007563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 53007563 is about 7280.6292997240. The cubic root of 53007563 is about 375.6464417353.

Adding to 53007563 its reverse (36570035), we get a palindrome (89577598).

The spelling of 53007563 in words is "fifty-three million, seven thousand, five hundred sixty-three".

Divisors: 1 7 29 49 73 203 343 511 1421 2117 3577 5329 9947 14819 25039 37303 103733 154541 261121 726131 1081787 1827847 7572509 53007563