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55125275 = 522205011
BaseRepresentation
bin1101001001001…
…0010100011011
310211201122122212
43102102110123
5103103002100
65245305335
71236362042
oct322222433
9124648585
1055125275
1129131487
121656524b
13b56120a
14746d559
154c8d635
hex349251b

55125275 has 6 divisors (see below), whose sum is σ = 68355372. Its totient is φ = 44100200.

The previous prime is 55125263. The next prime is 55125281. The reversal of 55125275 is 57252155.

It is a de Polignac number, because none of the positive numbers 2k-55125275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1102481 + ... + 1102530.

It is an arithmetic number, because the mean of its divisors is an integer number (11392562).

Almost surely, 255125275 is an apocalyptic number.

55125275 is a deficient number, since it is larger than the sum of its proper divisors (13230097).

55125275 is a wasteful number, since it uses less digits than its factorization.

55125275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205021 (or 2205016 counting only the distinct ones).

The product of its digits is 17500, while the sum is 32.

The square root of 55125275 is about 7424.6397218990. The cubic root of 55125275 is about 380.5837634168.

The spelling of 55125275 in words is "fifty-five million, one hundred twenty-five thousand, two hundred seventy-five".

Divisors: 1 5 25 2205011 11025055 55125275