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53777852137 = 1971991371779
BaseRepresentation
bin110010000101011010…
…001110011011101001
312010210212111221111101
4302011122032123221
51340114112232022
640412154001401
73612444125632
oct620532163351
9163725457441
1053777852137
11208972172a9
12a50a116261
1350c06511a9
142862378889
1515eb388627
hexc8568e6e9

53777852137 has 8 divisors (see below), whose sum is σ = 54322488000. Its totient is φ = 53235960624.

The previous prime is 53777852059. The next prime is 53777852231. The reversal of 53777852137 is 73125877735.

53777852137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53777852137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53777852537) 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, 646687 + ... + 725092.

It is an arithmetic number, because the mean of its divisors is an integer number (6790311000).

Almost surely, 253777852137 is an apocalyptic number.

It is an amenable number.

53777852137 is a deficient number, since it is larger than the sum of its proper divisors (544635863).

53777852137 is a wasteful number, since it uses less digits than its factorization.

53777852137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372175.

The product of its digits is 8643600, while the sum is 55.

The spelling of 53777852137 in words is "fifty-three billion, seven hundred seventy-seven million, eight hundred fifty-two thousand, one hundred thirty-seven".

Divisors: 1 197 199 39203 1371779 270240463 272984021 53777852137