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55006001 = 409134489
BaseRepresentation
bin1101000111010…
…1001100110001
310211111121001022
43101311030301
5103040143001
65242545225
71235354231
oct321651461
9124447038
1055006001
112905a906
1216508215
13b51bb3b
14743bcc1
154c6811b
hex3475331

55006001 has 4 divisors (see below), whose sum is σ = 55140900. Its totient is φ = 54871104.

The previous prime is 55005991. The next prime is 55006037. The reversal of 55006001 is 10060055.

55006001 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: 10060055 = 52012011.

It can be written as a sum of positive squares in 2 ways, for example, as 46566976 + 8439025 = 6824^2 + 2905^2 .

It is a cyclic number.

It is not a de Polignac number, because 55006001 - 214 = 54989617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55006801) 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, 66836 + ... + 67653.

It is an arithmetic number, because the mean of its divisors is an integer number (13785225).

Almost surely, 255006001 is an apocalyptic number.

It is an amenable number.

55006001 is a deficient number, since it is larger than the sum of its proper divisors (134899).

55006001 is a wasteful number, since it uses less digits than its factorization.

55006001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134898.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 55006001 is about 7416.6030633977. The cubic root of 55006001 is about 380.3090767960.

Adding to 55006001 its reverse (10060055), we get a palindrome (65066056).

The spelling of 55006001 in words is "fifty-five million, six thousand, one".

Divisors: 1 409 134489 55006001