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56560487 = 531067179
BaseRepresentation
bin1101011111000…
…0101101100111
310221102120101212
43113300231213
5103434413422
65340142035
71254520244
oct327605547
9127376355
1056560487
1129a21805
1216b3791b
13b944559
1477245cb
154e739e2
hex35f0b67

56560487 has 4 divisors (see below), whose sum is σ = 57627720. Its totient is φ = 55493256.

The previous prime is 56560477. The next prime is 56560489. The reversal of 56560487 is 78406565.

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

It is a cyclic number.

It is not a de Polignac number, because 56560487 - 218 = 56298343 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 (56560489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533537 + ... + 533642.

It is an arithmetic number, because the mean of its divisors is an integer number (14406930).

Almost surely, 256560487 is an apocalyptic number.

56560487 is a deficient number, since it is larger than the sum of its proper divisors (1067233).

56560487 is a wasteful number, since it uses less digits than its factorization.

56560487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067232.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 56560487 is about 7520.6706482866. The cubic root of 56560487 is about 383.8583982205.

The spelling of 56560487 in words is "fifty-six million, five hundred sixty thousand, four hundred eighty-seven".

Divisors: 1 53 1067179 56560487