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55701001 = 411358561
BaseRepresentation
bin1101010001111…
…0111000001001
310212210220102001
43110132320021
5103224413001
65305511001
71244310406
oct324367011
9125726361
1055701001
1129494a94
12167a2461
13b703295
14757d2ad
154d54001
hex351ee09

55701001 has 4 divisors (see below), whose sum is σ = 57059604. Its totient is φ = 54342400.

The previous prime is 55700987. The next prime is 55701007. The reversal of 55701001 is 10010755.

55701001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10010755 = 52002151.

It can be written as a sum of positive squares in 2 ways, for example, as 5645376 + 50055625 = 2376^2 + 7075^2 .

It is a cyclic number.

It is not a de Polignac number, because 55701001 - 213 = 55692809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55701001.

It is not an unprimeable number, because it can be changed into a prime (55701007) 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 3 ways as a sum of consecutive naturals, for example, 679240 + ... + 679321.

It is an arithmetic number, because the mean of its divisors is an integer number (14264901).

Almost surely, 255701001 is an apocalyptic number.

It is an amenable number.

55701001 is a deficient number, since it is larger than the sum of its proper divisors (1358603).

55701001 is a wasteful number, since it uses less digits than its factorization.

55701001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358602.

The product of its (nonzero) digits is 175, while the sum is 19.

The square root of 55701001 is about 7463.3103245142. The cubic root of 55701001 is about 381.9041109613.

Adding to 55701001 its reverse (10010755), we get a palindrome (65711756).

The spelling of 55701001 in words is "fifty-five million, seven hundred one thousand, one".

Divisors: 1 41 1358561 55701001