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52755550525 = 525113412717
BaseRepresentation
bin110001001000011110…
…011101000100111101
312001011121212122022201
4301020132131010331
51331020410104100
640122514311501
73545221531516
oct611036350475
9161147778281
1052755550525
1120412150a37
12a283888591
134c899060b2
1427a66a3a0d
15158b74e36a
hexc4879d13d

52755550525 has 12 divisors (see below), whose sum is σ = 65429835412. Its totient is φ = 42196083840.

The previous prime is 52755550513. The next prime is 52755550553. The reversal of 52755550525 is 52505555725.

52755550525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 7664302116 + 45091248409 = 87546^2 + 212347^2 .

It is a de Polignac number, because none of the positive numbers 2k-52755550525 is a prime.

It is a super-2 number, since 2×527555505252 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78534 + ... + 334183.

Almost surely, 252755550525 is an apocalyptic number.

It is an amenable number.

52755550525 is a deficient number, since it is larger than the sum of its proper divisors (12674284887).

52755550525 is a wasteful number, since it uses less digits than its factorization.

52755550525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417840 (or 417835 counting only the distinct ones).

The product of its (nonzero) digits is 2187500, while the sum is 46.

The spelling of 52755550525 in words is "fifty-two billion, seven hundred fifty-five million, five hundred fifty thousand, five hundred twenty-five".

Divisors: 1 5 25 5113 25565 127825 412717 2063585 10317925 2110222021 10551110105 52755550525