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56485561 = 116418011
BaseRepresentation
bin1101011101111…
…0011010111001
310221021202121211
43113132122321
5103430014221
65334403121
71254055636
oct327363271
9127252554
1056485561
1129980490
1216b004a1
13b919412
14770518d
154e5b6e1
hex35de6b9

56485561 has 8 divisors (see below), whose sum is σ = 61724448. Its totient is φ = 51264000.

The previous prime is 56485549. The next prime is 56485589. The reversal of 56485561 is 16558465.

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 56485561 - 25 = 56485529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56485661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3046 + ... + 11056.

It is an arithmetic number, because the mean of its divisors is an integer number (7715556).

Almost surely, 256485561 is an apocalyptic number.

It is an amenable number.

56485561 is a deficient number, since it is larger than the sum of its proper divisors (5238887).

56485561 is a wasteful number, since it uses less digits than its factorization.

56485561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663.

The product of its digits is 144000, while the sum is 40.

The square root of 56485561 is about 7515.6876598220. The cubic root of 56485561 is about 383.6888235158.

The spelling of 56485561 in words is "fifty-six million, four hundred eighty-five thousand, five hundred sixty-one".

Divisors: 1 11 641 7051 8011 88121 5135051 56485561