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56552605 = 511310521
BaseRepresentation
bin1101011110111…
…0110010011101
310221102011120221
43113232302131
5103434140410
65340041341
71254455254
oct327566235
9127364527
1056552605
1129a1689a
1216b33251
13b940aa5
14772179b
154e714da
hex35eec9d

56552605 has 4 divisors (see below), whose sum is σ = 67863132. Its totient is φ = 45242080.

The previous prime is 56552599. The next prime is 56552633. The reversal of 56552605 is 50625565.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29398084 + 27154521 = 5422^2 + 5211^2 .

It is a de Polignac number, because none of the positive numbers 2k-56552605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5655256 + ... + 5655265.

It is an arithmetic number, because the mean of its divisors is an integer number (16965783).

Almost surely, 256552605 is an apocalyptic number.

It is an amenable number.

56552605 is a deficient number, since it is larger than the sum of its proper divisors (11310527).

56552605 is a wasteful number, since it uses less digits than its factorization.

56552605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11310526.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 56552605 is about 7520.1466076134. The cubic root of 56552605 is about 383.8405664997.

The spelling of 56552605 in words is "fifty-six million, five hundred fifty-two thousand, six hundred five".

Divisors: 1 5 11310521 56552605