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53551055 = 5591671087
BaseRepresentation
bin1100110001000…
…1111111001111
310201202200020102
43030101333033
5102202113210
65151441315
71220114345
oct314217717
9121680212
1053551055
1128256778
1215b2623b
13b12c81c
14717d995
154a7bea5
hex3311fcf

53551055 has 16 divisors (see below), whose sum is σ = 65802240. Its totient is φ = 41824032.

The previous prime is 53551051. The next prime is 53551073. The reversal of 53551055 is 55015535.

It is a cyclic number.

It is not a de Polignac number, because 53551055 - 22 = 53551051 is a prime.

It is a super-2 number, since 2×535510552 = 5735430983226050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53551051) 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, 48722 + ... + 49808.

It is an arithmetic number, because the mean of its divisors is an integer number (4112640).

Almost surely, 253551055 is an apocalyptic number.

53551055 is a deficient number, since it is larger than the sum of its proper divisors (12251185).

53551055 is a wasteful number, since it uses less digits than its factorization.

53551055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 9375, while the sum is 29.

The square root of 53551055 is about 7317.8586348740. The cubic root of 53551055 is about 376.9259259655.

The spelling of 53551055 in words is "fifty-three million, five hundred fifty-one thousand, fifty-five".

Divisors: 1 5 59 167 295 835 1087 5435 9853 49265 64133 181529 320665 907645 10710211 53551055