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55056625 = 5313171993
BaseRepresentation
bin1101001000000…
…1100011110001
310211121011111021
43102001203301
5103043303000
65244015441
71235654641
oct322014361
9124534437
1055056625
1129094948
1216531581
13b538bb0
147452521
154c7811a
hex34818f1

55056625 has 32 divisors (see below), whose sum is σ = 78388128. Its totient is φ = 38246400.

The previous prime is 55056619. The next prime is 55056653. The reversal of 55056625 is 52665055.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 35129329 + 19927296 = 5927^2 + 4464^2 .

It is not a de Polignac number, because 55056625 - 25 = 55056593 is a prime.

It is a super-3 number, since 3×550566253 (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 26629 + ... + 28621.

It is an arithmetic number, because the mean of its divisors is an integer number (2449629).

Almost surely, 255056625 is an apocalyptic number.

It is an amenable number.

55056625 is a deficient number, since it is larger than the sum of its proper divisors (23331503).

55056625 is a wasteful number, since it uses less digits than its factorization.

55056625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038 (or 2028 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 55056625 is about 7420.0151617096. The cubic root of 55056625 is about 380.4257117269.

It can be divided in two parts, 550 and 56625, that added together give a palindrome (57175).

The spelling of 55056625 in words is "fifty-five million, fifty-six thousand, six hundred twenty-five".

Divisors: 1 5 13 17 25 65 85 125 221 325 425 1105 1625 1993 2125 5525 9965 25909 27625 33881 49825 129545 169405 249125 440453 647725 847025 2202265 3238625 4235125 11011325 55056625