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275505053 = 449613597
BaseRepresentation
bin10000011010111…
…101111110011101
3201012102002212212
4100122331332131
51031012130203
643201010205
76553516505
oct2032757635
9635362785
10275505053
1113157402a
1278323965
1345102755
1428838a05
15192c11d8
hex106bdf9d

275505053 has 4 divisors (see below), whose sum is σ = 276119100. Its totient is φ = 274891008.

The previous prime is 275505049. The next prime is 275505059. The reversal of 275505053 is 350505572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 170093764 + 105411289 = 13042^2 + 10267^2 .

It is a cyclic number.

It is not a de Polignac number, because 275505053 - 22 = 275505049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275505059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306350 + ... + 307247.

It is an arithmetic number, because the mean of its divisors is an integer number (69029775).

Almost surely, 2275505053 is an apocalyptic number.

It is an amenable number.

275505053 is a deficient number, since it is larger than the sum of its proper divisors (614047).

275505053 is an equidigital number, since it uses as much as digits as its factorization.

275505053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614046.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 275505053 is about 16598.3448873675. The cubic root of 275505053 is about 650.6935815451.

The spelling of 275505053 in words is "two hundred seventy-five million, five hundred five thousand, fifty-three".

Divisors: 1 449 613597 275505053