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56600121601 = 462711223231
BaseRepresentation
bin110100101101101000…
…010101000100000001
312102002120010002101001
4310231220111010001
51411404112342401
642000213012001
74042414044532
oct645550250401
9172076102331
1056600121601
1122005325101
12ab77324001
13545027781a
142a4d118689
151714021601
hexd2da15101

56600121601 has 4 divisors (see below), whose sum is σ = 56601391104. Its totient is φ = 56598852100.

The previous prime is 56600121569. The next prime is 56600121707. The reversal of 56600121601 is 10612100665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56600121601 - 25 = 56600121569 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 56600121601.

It is not an unprimeable number, because it can be changed into a prime (56600121001) 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, 565345 + ... + 657886.

It is an arithmetic number, because the mean of its divisors is an integer number (14150347776).

Almost surely, 256600121601 is an apocalyptic number.

It is an amenable number.

56600121601 is a deficient number, since it is larger than the sum of its proper divisors (1269503).

56600121601 is a wasteful number, since it uses less digits than its factorization.

56600121601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269502.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 56600121601 in words is "fifty-six billion, six hundred million, one hundred twenty-one thousand, six hundred one".

Divisors: 1 46271 1223231 56600121601