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56505601 = 1929102551
BaseRepresentation
bin1101011110001…
…1010100000001
310221022210010001
43113203110001
5103431134401
65335040001
71254201235
oct327432401
9127283101
1056505601
1129994549
1216b10001
13b925589
14770c5c5
154e62601
hex35e3501

56505601 has 8 divisors (see below), whose sum is σ = 61531200. Its totient is φ = 51685200.

The previous prime is 56505557. The next prime is 56505607. The reversal of 56505601 is 10650565.

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 56505601 - 211 = 56503553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56505601.

It is not an unprimeable number, because it can be changed into a prime (56505607) 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, 50725 + ... + 51826.

It is an arithmetic number, because the mean of its divisors is an integer number (7691400).

Almost surely, 256505601 is an apocalyptic number.

It is an amenable number.

56505601 is a deficient number, since it is larger than the sum of its proper divisors (5025599).

56505601 is a wasteful number, since it uses less digits than its factorization.

56505601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102599.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 56505601 is about 7517.0207529313. The cubic root of 56505601 is about 383.7341933103.

The spelling of 56505601 in words is "fifty-six million, five hundred five thousand, six hundred one".

Divisors: 1 19 29 551 102551 1948469 2973979 56505601