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53061525 = 32521121949
BaseRepresentation
bin1100101001101…
…0011110010101
310200211210201200
43022122132111
5102040432100
65133143113
71213005216
oct312323625
9120753650
1053061525
1127a51a00
121592aa99
13acbaa6a
14709340d
1549d1e00
hex329a795

53061525 has 54 divisors (see below), whose sum is σ = 104518050. Its totient is φ = 25713600.

The previous prime is 53061517. The next prime is 53061563. The reversal of 53061525 is 52516035.

It can be written as a sum of positive squares in 3 ways, for example, as 8625969 + 44435556 = 2937^2 + 6666^2 .

It is not a de Polignac number, because 53061525 - 23 = 53061517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 26251 + ... + 28199.

Almost surely, 253061525 is an apocalyptic number.

53061525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53061525 is a deficient number, since it is larger than the sum of its proper divisors (51456525).

53061525 is a wasteful number, since it uses less digits than its factorization.

53061525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 53061525 is about 7284.3342180326. The cubic root of 53061525 is about 375.7738685746.

Subtracting from 53061525 its reverse (52516035), we obtain a triangular number (545490 = T1044).

The spelling of 53061525 in words is "fifty-three million, sixty-one thousand, five hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 33 45 55 75 99 121 165 225 275 363 495 605 825 1089 1815 1949 2475 3025 5445 5847 9075 9745 17541 21439 27225 29235 48725 64317 87705 107195 146175 192951 235829 321585 438525 535975 707487 964755 1179145 1607925 2122461 3537435 4823775 5895725 10612305 17687175 53061525