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55007523 = 321072392
BaseRepresentation
bin1101000111010…
…1100100100011
310211111200010200
43101311210203
5103040220043
65243000243
71235361534
oct321654443
9124450120
1055007523
1129060a6a
1216509083
13b51c73c
14743c68b
154c687d3
hex3475923

55007523 has 18 divisors (see below), whose sum is σ = 80534844. Its totient is φ = 36176952.

The previous prime is 55007521. The next prime is 55007539. The reversal of 55007523 is 32570055.

55007523 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 55007523 - 21 = 55007521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55007521) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 230038 + ... + 230276.

It is an arithmetic number, because the mean of its divisors is an integer number (4474158).

Almost surely, 255007523 is an apocalyptic number.

55007523 is a deficient number, since it is larger than the sum of its proper divisors (25527321).

55007523 is a wasteful number, since it uses less digits than its factorization.

55007523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 55007523 is about 7416.7056703094. The cubic root of 55007523 is about 380.3125844440.

Adding to 55007523 its reverse (32570055), we get a palindrome (87577578).

The spelling of 55007523 in words is "fifty-five million, seven thousand, five hundred twenty-three".

Divisors: 1 3 9 107 239 321 717 963 2151 25573 57121 76719 171363 230157 514089 6111947 18335841 55007523