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53553025 = 522142121
BaseRepresentation
bin1100110001001…
…0011110000001
310201202202221101
43030102132001
5102202144100
65151454401
71220123161
oct314223601
9121682841
1053553025
11282581a9
1215b27401
13b1306a6
1471805a1
154a7c86a
hex3312781

53553025 has 6 divisors (see below), whose sum is σ = 66405782. Its totient is φ = 42842400.

The previous prime is 53552981. The next prime is 53553083. The reversal of 53553025 is 52035535.

It can be written as a sum of positive squares in 3 ways, for example, as 685584 + 52867441 = 828^2 + 7271^2 .

It is not a de Polignac number, because 53553025 - 211 = 53550977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53552984 and 53553002.

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 5 ways as a sum of consecutive naturals, for example, 1071036 + ... + 1071085.

Almost surely, 253553025 is an apocalyptic number.

It is an amenable number.

53553025 is a deficient number, since it is larger than the sum of its proper divisors (12852757).

53553025 is a wasteful number, since it uses less digits than its factorization.

53553025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142131 (or 2142126 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 28.

The square root of 53553025 is about 7317.9932358537. The cubic root of 53553025 is about 376.9305479409.

The spelling of 53553025 in words is "fifty-three million, five hundred fifty-three thousand, twenty-five".

Divisors: 1 5 25 2142121 10710605 53553025