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56725735 = 5111922857
BaseRepresentation
bin1101100001100…
…1000011100111
310221201222002011
43120121003213
5104010210420
65343455051
71256106103
oct330310347
9127658064
1056725735
112a024980
1216bb7487
13b9a1831
147768903
154ea795a
hex36190e7

56725735 has 24 divisors (see below), whose sum is σ = 78400656. Its totient is φ = 39070080.

The previous prime is 56725709. The next prime is 56725759. The reversal of 56725735 is 53752765.

56725735 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56725735 - 213 = 56717543 is a prime.

It is a super-2 number, since 2×567257352 = 6435618022580450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18427 + ... + 21283.

It is an arithmetic number, because the mean of its divisors is an integer number (3266694).

Almost surely, 256725735 is an apocalyptic number.

56725735 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56725735 is a deficient number, since it is larger than the sum of its proper divisors (21674921).

56725735 is a wasteful number, since it uses less digits than its factorization.

56725735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911 (or 2892 counting only the distinct ones).

The product of its digits is 220500, while the sum is 40.

The square root of 56725735 is about 7531.6488898514. The cubic root of 56725735 is about 384.2318636410.

The spelling of 56725735 in words is "fifty-six million, seven hundred twenty-five thousand, seven hundred thirty-five".

Divisors: 1 5 11 19 55 95 209 361 1045 1805 2857 3971 14285 19855 31427 54283 157135 271415 597113 1031377 2985565 5156885 11345147 56725735