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55525080 = 23351335593
BaseRepresentation
bin1101001111001…
…1111011011000
310212110222002110
43103303323120
5103203300310
65302032320
71242645462
oct323637330
9125428073
1055525080
11293848a6
12167186a0
13b6711a0
147535132
154d1bd20
hex34f3ed8

55525080 has 64 divisors (see below), whose sum is σ = 179393760. Its totient is φ = 13667328.

The previous prime is 55525073. The next prime is 55525081. The reversal of 55525080 is 8052555.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55525081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16237 + ... + 19356.

Almost surely, 255525080 is an apocalyptic number.

It is an amenable number.

55525080 is an abundant number, since it is smaller than the sum of its proper divisors (123868680).

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

55525080 is a wasteful number, since it uses less digits than its factorization.

55525080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35620 (or 35616 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 55525080 is about 7451.5152821423. The cubic root of 55525080 is about 381.5016298176.

The spelling of 55525080 in words is "fifty-five million, five hundred twenty-five thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1560 35593 71186 106779 142372 177965 213558 284744 355930 427116 462709 533895 711860 854232 925418 1067790 1388127 1423720 1850836 2135580 2313545 2776254 3701672 4271160 4627090 5552508 6940635 9254180 11105016 13881270 18508360 27762540 55525080