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56505653 = 318321961
BaseRepresentation
bin1101011110001…
…1010100110101
310221022210011222
43113203110311
5103431140103
65335040125
71254201341
oct327432465
9127283158
1056505653
1129994596
1216b10045
13b9255c9
14770c621
154e62638
hex35e3535

56505653 has 8 divisors (see below), whose sum is σ = 59033856. Its totient is φ = 54021600.

The previous prime is 56505629. The next prime is 56505661. The reversal of 56505653 is 35650565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56505653 - 216 = 56440117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56505613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8408 + ... + 13553.

It is an arithmetic number, because the mean of its divisors is an integer number (7379232).

Almost surely, 256505653 is an apocalyptic number.

It is an amenable number.

56505653 is a deficient number, since it is larger than the sum of its proper divisors (2528203).

56505653 is a wasteful number, since it uses less digits than its factorization.

56505653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22075.

The product of its (nonzero) digits is 67500, while the sum is 35.

The square root of 56505653 is about 7517.0242117476. The cubic root of 56505653 is about 383.7343110224.

The spelling of 56505653 in words is "fifty-six million, five hundred five thousand, six hundred fifty-three".

Divisors: 1 31 83 2573 21961 680791 1822763 56505653