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52553025 = 3252761547
BaseRepresentation
bin1100100001111…
…0010101000001
310122212222012100
43020132111001
5101423144100
65114221013
71205456550
oct310362501
9118788170
1052553025
1127734958
1215724769
13ab70485
146d9dd97
154931400
hex321e541

52553025 has 72 divisors (see below), whose sum is σ = 109538624. Its totient is φ = 23587200.

The previous prime is 52552979. The next prime is 52553041. The reversal of 52553025 is 52035525.

It is not a de Polignac number, because 52553025 - 26 = 52552961 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 52553025.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 95802 + ... + 96348.

Almost surely, 252553025 is an apocalyptic number.

It is an amenable number.

52553025 is an abundant number, since it is smaller than the sum of its proper divisors (56985599).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52553025 is a wasteful number, since it uses less digits than its factorization.

52553025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 52553025 is about 7249.3465222736. The cubic root of 52553025 is about 374.5696396288.

The spelling of 52553025 in words is "fifty-two million, five hundred fifty-three thousand, twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 61 63 75 105 175 183 225 305 315 427 525 547 549 915 1281 1525 1575 1641 2135 2735 2745 3829 3843 4575 4923 6405 8205 10675 11487 13675 13725 19145 19215 24615 32025 33367 34461 41025 57435 95725 96075 100101 123075 166835 172305 233569 287175 300303 500505 700707 834175 861525 1167845 1501515 2102121 2502525 3503535 5839225 7507575 10510605 17517675 52553025