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55050065 = 572396581
BaseRepresentation
bin1101000111111…
…1111101010001
310211120211111022
43101333331101
5103043100230
65243525225
71235626550
oct321777521
9124524438
1055050065
112908aa24
1216529815
13b535c05
14744dd97
154c761e5
hex347ff51

55050065 has 16 divisors (see below), whose sum is σ = 75824640. Its totient is φ = 37584960.

The previous prime is 55050041. The next prime is 55050067. The reversal of 55050065 is 56005055.

It is not a de Polignac number, because 55050065 - 26 = 55050001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55050067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5075 + ... + 11655.

It is an arithmetic number, because the mean of its divisors is an integer number (4739040).

Almost surely, 255050065 is an apocalyptic number.

It is an amenable number.

55050065 is a deficient number, since it is larger than the sum of its proper divisors (20774575).

55050065 is a wasteful number, since it uses less digits than its factorization.

55050065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6832.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 55050065 is about 7419.5731009270. The cubic root of 55050065 is about 380.4106018784.

The spelling of 55050065 in words is "fifty-five million, fifty thousand, sixty-five".

Divisors: 1 5 7 35 239 1195 1673 6581 8365 32905 46067 230335 1572859 7864295 11010013 55050065