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56607685 = 511321537
BaseRepresentation
bin1101011111110…
…0001111000101
310221111222010221
43113330033011
5103442421220
65341144341
71255104661
oct327741705
9127458127
1056607685
1129a54212
1216b5b0b1
13b95cb94
1477378a1
154e829aa
hex35fc3c5

56607685 has 4 divisors (see below), whose sum is σ = 67929228. Its totient is φ = 45286144.

The previous prime is 56607673. The next prime is 56607701. The reversal of 56607685 is 58670665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58670665 = 511734133.

It can be written as a sum of positive squares in 2 ways, for example, as 44315649 + 12292036 = 6657^2 + 3506^2 .

It is a cyclic number.

It is not a de Polignac number, because 56607685 - 27 = 56607557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5660764 + ... + 5660773.

It is an arithmetic number, because the mean of its divisors is an integer number (16982307).

Almost surely, 256607685 is an apocalyptic number.

It is an amenable number.

56607685 is a deficient number, since it is larger than the sum of its proper divisors (11321543).

56607685 is a wasteful number, since it uses less digits than its factorization.

56607685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11321542.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 56607685 is about 7523.8078789932. The cubic root of 56607685 is about 383.9651412403.

The spelling of 56607685 in words is "fifty-six million, six hundred seven thousand, six hundred eighty-five".

Divisors: 1 5 11321537 56607685