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56050601081 = 673170948733
BaseRepresentation
bin110100001100111000…
…000100110001111001
312100200021002112221012
4310030320010301321
51404242423213311
641425502523305
74022662151066
oct641470046171
9170607075835
1056050601081
1121853115212
12aa43296535
135393474657
1429da151c6d
1516d0b7578b
hexd0ce04c79

56050601081 has 8 divisors (see below), whose sum is σ = 56167884360. Its totient is φ = 55933420032.

The previous prime is 56050601059. The next prime is 56050601099. The reversal of 56050601081 is 18010605065.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3785325625 + 52265275456 = 61525^2 + 228616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56050601081 is a prime.

It is a super-2 number, since 2×560506010812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56050601381) 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, 1125791 + ... + 1174523.

It is an arithmetic number, because the mean of its divisors is an integer number (7020985545).

Almost surely, 256050601081 is an apocalyptic number.

It is an amenable number.

56050601081 is a deficient number, since it is larger than the sum of its proper divisors (117283279).

56050601081 is a wasteful number, since it uses less digits than its factorization.

56050601081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51115.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 56050601081 in words is "fifty-six billion, fifty million, six hundred one thousand, eighty-one".

Divisors: 1 673 1709 48733 1150157 32797309 83284697 56050601081