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56505325 = 528212753
BaseRepresentation
bin1101011110001…
…1001111101101
310221022202201211
43113203033231
5103431132300
65335034421
71254200362
oct327431755
9127282654
1056505325
1129994318
1216b0ba11
13b925406
14770c469
154e624ba
hex35e33ed

56505325 has 12 divisors (see below), whose sum is σ = 70177428. Its totient is φ = 45132800.

The previous prime is 56505283. The next prime is 56505329. The reversal of 56505325 is 52350565.

It can be written as a sum of positive squares in 6 ways, for example, as 36 + 56505289 = 6^2 + 7517^2 .

It is not a de Polignac number, because 56505325 - 215 = 56472557 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 (56505329) 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 11 ways as a sum of consecutive naturals, for example, 19149 + ... + 21901.

It is an arithmetic number, because the mean of its divisors is an integer number (5848119).

Almost surely, 256505325 is an apocalyptic number.

It is an amenable number.

56505325 is a deficient number, since it is larger than the sum of its proper divisors (13672103).

56505325 is a wasteful number, since it uses less digits than its factorization.

56505325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584 (or 3579 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 56505325 is about 7517.0023945719. The cubic root of 56505325 is about 383.7335685297.

The spelling of 56505325 in words is "fifty-six million, five hundred five thousand, three hundred twenty-five".

Divisors: 1 5 25 821 2753 4105 13765 20525 68825 2260213 11301065 56505325