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55227272255 = 571155569781
BaseRepresentation
bin110011011011110011…
…010100110000111111
312021112212212010002222
4303123303110300333
51401101140203010
641212052035555
73663404032361
oct633363246077
9167485763088
1055227272255
11214703a0071
12a853602bbb
135291a1412c
14295ca72d31
151683741355
hexcdbcd4c3f

55227272255 has 8 divisors (see below), whose sum is σ = 67206145824. Its totient is φ = 43559538400.

The previous prime is 55227272251. The next prime is 55227272291.

55227272255 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55227272255 - 22 = 55227272251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55227272251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77784536 + ... + 77785245.

It is an arithmetic number, because the mean of its divisors is an integer number (8400768228).

Almost surely, 255227272255 is an apocalyptic number.

55227272255 is a deficient number, since it is larger than the sum of its proper divisors (11978873569).

55227272255 is a wasteful number, since it uses less digits than its factorization.

55227272255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155569857.

The product of its digits is 980000, while the sum is 44.

The spelling of 55227272255 in words is "fifty-five billion, two hundred twenty-seven million, two hundred seventy-two thousand, two hundred fifty-five".

Divisors: 1 5 71 355 155569781 777848905 11045454451 55227272255