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55523055 = 357528791
BaseRepresentation
bin1101001111001…
…1011011101111
310212110212022110
43103303123233
5103203214210
65302015103
71242636540
oct323633357
9125425273
1055523055
1129383325
1216717493
13b6702a3
1475344c7
154d1b420
hex34f36ef

55523055 has 16 divisors (see below), whose sum is σ = 101528064. Its totient is φ = 25381920.

The previous prime is 55523047. The next prime is 55523057. The reversal of 55523055 is 55032555.

It is not a de Polignac number, because 55523055 - 23 = 55523047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55523057) 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, 264291 + ... + 264500.

It is an arithmetic number, because the mean of its divisors is an integer number (6345504).

Almost surely, 255523055 is an apocalyptic number.

55523055 is a deficient number, since it is larger than the sum of its proper divisors (46005009).

55523055 is a wasteful number, since it uses less digits than its factorization.

55523055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528806.

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 55523055 is about 7451.3794024999. The cubic root of 55523055 is about 381.4969919723.

The spelling of 55523055 in words is "fifty-five million, five hundred twenty-three thousand, fifty-five".

Divisors: 1 3 5 7 15 21 35 105 528791 1586373 2643955 3701537 7931865 11104611 18507685 55523055