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52544424443 = 77506346349
BaseRepresentation
bin110000111011111001…
…000100100111111011
312000121220121022210012
4300323321010213323
51330102333040233
640045533212135
73540046144550
oct607371044773
9160556538705
1052544424443
1120313a59875
12a22503104b
134c54c54814
142786626a27
151577e48548
hexc3be449fb

52544424443 has 4 divisors (see below), whose sum is σ = 60050770800. Its totient is φ = 45038078088.

The previous prime is 52544424403. The next prime is 52544424473. The reversal of 52544424443 is 34442444525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52544424443 - 210 = 52544423419 is a prime.

It is a super-2 number, since 2×525444244432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52544424443.

It is not an unprimeable number, because it can be changed into a prime (52544424403) 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, 3753173168 + ... + 3753173181.

It is an arithmetic number, because the mean of its divisors is an integer number (15012692700).

Almost surely, 252544424443 is an apocalyptic number.

52544424443 is a deficient number, since it is larger than the sum of its proper divisors (7506346357).

52544424443 is an equidigital number, since it uses as much as digits as its factorization.

52544424443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506346356.

The product of its digits is 1228800, while the sum is 41.

Adding to 52544424443 its reverse (34442444525), we get a palindrome (86986868968).

The spelling of 52544424443 in words is "fifty-two billion, five hundred forty-four million, four hundred twenty-four thousand, four hundred forty-three".

Divisors: 1 7 7506346349 52544424443