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56051071 = 296318917
BaseRepresentation
bin1101010111010…
…0010101111111
310220110200121121
43111310111333
5103322113241
65321211411
71250266126
oct325642577
9126420547
1056051071
1129703aaa
1216930b67
13b7c671b
147630abd
154dc2ad1
hex357457f

56051071 has 4 divisors (see below), whose sum is σ = 56072952. Its totient is φ = 56029192.

The previous prime is 56051033. The next prime is 56051077. The reversal of 56051071 is 17015065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17015065 = 53403013.

It is a cyclic number.

It is not a de Polignac number, because 56051071 - 213 = 56042879 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 (56051077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496 + ... + 12421.

It is an arithmetic number, because the mean of its divisors is an integer number (14018238).

Almost surely, 256051071 is an apocalyptic number.

56051071 is a deficient number, since it is larger than the sum of its proper divisors (21881).

56051071 is a wasteful number, since it uses less digits than its factorization.

56051071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21880.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 56051071 is about 7486.7263206291. The cubic root of 56051071 is about 382.7025051553.

The spelling of 56051071 in words is "fifty-six million, fifty-one thousand, seventy-one".

Divisors: 1 2963 18917 56051071