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55374545727 = 35227878789
BaseRepresentation
bin110011100100100101…
…001000001100111111
312021221010222101100000
4303210211020030333
51401401340430402
641234432405343
74000142605164
oct634445101477
9167833871300
1055374545727
112153653a886
12a8949a6853
1352b6399cb7
14297444c06b
151691632c1c
hexce494833f

55374545727 has 12 divisors (see below), whose sum is σ = 82947879560. Its totient is φ = 36916363656.

The previous prime is 55374545627. The next prime is 55374545749. The reversal of 55374545727 is 72754547355.

55374545727 is a `hidden beast` number, since 5 + 5 + 3 + 74 + 545 + 7 + 27 = 666.

55374545727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55374545727 - 222 = 55370351423 is a prime.

It is a super-2 number, since 2×553745457272 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55374545767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113939152 + ... + 113939637.

Almost surely, 255374545727 is an apocalyptic number.

55374545727 is a deficient number, since it is larger than the sum of its proper divisors (27573333833).

55374545727 is an equidigital number, since it uses as much as digits as its factorization.

55374545727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227878804 (or 227878792 counting only the distinct ones).

The product of its digits is 20580000, while the sum is 54.

The spelling of 55374545727 in words is "fifty-five billion, three hundred seventy-four million, five hundred forty-five thousand, seven hundred twenty-seven".

Divisors: 1 3 9 27 81 243 227878789 683636367 2050909101 6152727303 18458181909 55374545727