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75055 = 517883
BaseRepresentation
bin10010010100101111
310210221211
4102110233
54400210
61335251
7431551
oct222457
9123854
1075055
1151432
1237527
1328216
141d4d1
151738a
hex1252f

75055 has 8 divisors (see below), whose sum is σ = 95472. Its totient is φ = 56448.

The previous prime is 75041. The next prime is 75079. The reversal of 75055 is 55057.

75055 is nontrivially palindromic in base 14.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 7-Lehmer number, since φ(75055) divides (75055-1)7.

It is a cyclic number.

It is not a de Polignac number, because 75055 - 213 = 66863 is a prime.

75055 is a lucky number.

It is a plaindrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357 + ... + 526.

It is an arithmetic number, because the mean of its divisors is an integer number (11934).

275055 is an apocalyptic number.

75055 is a deficient number, since it is larger than the sum of its proper divisors (20417).

75055 is a wasteful number, since it uses less digits than its factorization.

75055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 875, while the sum is 22.

The square root of 75055 is about 273.9616761520. The cubic root of 75055 is about 42.1819393677.

The spelling of 75055 in words is "seventy-five thousand, fifty-five".

Divisors: 1 5 17 85 883 4415 15011 75055