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52755525 = 3252376337
BaseRepresentation
bin1100100100111…
…1110001000101
310200021020222100
43021033301011
5102001134100
65122422313
71210262124
oct311176105
9120236870
1052755525
1127863009
1215801999
13ac116b4
147013abb
154971400
hex324fc45

52755525 has 36 divisors (see below), whose sum is σ = 97060132. Its totient is φ = 27371520.

The previous prime is 52755523. The next prime is 52755557. The reversal of 52755525 is 52555725.

52755525 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 4356 + 52751169 = 66^2 + 7263^2 .

It is not a de Polignac number, because 52755525 - 21 = 52755523 is a prime.

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 52755525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52755523) 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 35 ways as a sum of consecutive naturals, for example, 5157 + ... + 11493.

Almost surely, 252755525 is an apocalyptic number.

It is an amenable number.

52755525 is a deficient number, since it is larger than the sum of its proper divisors (44304607).

52755525 is a wasteful number, since it uses less digits than its factorization.

52755525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390 (or 6382 counting only the distinct ones).

The product of its digits is 87500, while the sum is 36.

The square root of 52755525 is about 7263.2998698938. The cubic root of 52755525 is about 375.0501266326.

The spelling of 52755525 in words is "fifty-two million, seven hundred fifty-five thousand, five hundred twenty-five".

Divisors: 1 3 5 9 15 25 37 45 75 111 185 225 333 555 925 1665 2775 6337 8325 19011 31685 57033 95055 158425 234469 285165 475275 703407 1172345 1425825 2110221 3517035 5861725 10551105 17585175 52755525