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56147125 = 531572861
BaseRepresentation
bin1101011000101…
…1110010110101
310220122120101011
43112023302311
5103333202000
65323232221
71251146146
oct326136265
9126576334
1056147125
112976a191
1216978671
13b82b368
147657acd
154de12ba
hex358bcb5

56147125 has 16 divisors (see below), whose sum is σ = 70542576. Its totient is φ = 44616000.

The previous prime is 56147123. The next prime is 56147129. The reversal of 56147125 is 52174165.

It can be written as a sum of positive squares in 8 ways, for example, as 22344529 + 33802596 = 4727^2 + 5814^2 .

It is not a de Polignac number, because 56147125 - 21 = 56147123 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 (56147123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18195 + ... + 21055.

It is an arithmetic number, because the mean of its divisors is an integer number (4408911).

Almost surely, 256147125 is an apocalyptic number.

It is an amenable number.

56147125 is a deficient number, since it is larger than the sum of its proper divisors (14395451).

56147125 is a wasteful number, since it uses less digits than its factorization.

56147125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033 (or 3023 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 56147125 is about 7493.1385280135. The cubic root of 56147125 is about 382.9209911854.

The spelling of 56147125 in words is "fifty-six million, one hundred forty-seven thousand, one hundred twenty-five".

Divisors: 1 5 25 125 157 785 2861 3925 14305 19625 71525 357625 449177 2245885 11229425 56147125