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56125 = 53449
BaseRepresentation
bin1101101100111101
32211222201
431230331
53244000
61111501
7322426
oct155475
984881
1056125
1139193
1228591
131c714
141664d
151196a
hexdb3d

56125 has 8 divisors (see below), whose sum is σ = 70200. Its totient is φ = 44800.

The previous prime is 56123. The next prime is 56131. The reversal of 56125 is 52165.

It is a happy number.

56125 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 4 ways, for example, as 1369 + 54756 = 37^2 + 234^2 .

It is not a de Polignac number, because 56125 - 21 = 56123 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

56125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100 + ... + 349.

It is an arithmetic number, because the mean of its divisors is an integer number (8775).

256125 is an apocalyptic number.

It is an amenable number.

56125 is a deficient number, since it is larger than the sum of its proper divisors (14075).

56125 is an equidigital number, since it uses as much as digits as its factorization.

56125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 454 counting only the distinct ones).

The product of its digits is 300, while the sum is 19.

The square root of 56125 is about 236.9071548096. The cubic root of 56125 is about 38.2870687393.

It can be divided in two parts, 56 and 125, that added together give a palindrome (181).

The spelling of 56125 in words is "fifty-six thousand, one hundred twenty-five".

Divisors: 1 5 25 125 449 2245 11225 56125