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55874247855 = 3517389214213
BaseRepresentation
bin110100000010010111…
…010101110010101111
312100012222020212210020
4310002113111302233
51403412301412410
641400203013223
74015421161536
oct640227256257
9170188225706
1055874247855
1121772613448
12a9b420a213
135365a7962a
1429c096731d
1516c043ca70
hexd025d5caf

55874247855 has 16 divisors (see below), whose sum is σ = 89404355040. Its totient is φ = 29797746048.

The previous prime is 55874247851. The next prime is 55874247881.

It is a happy number.

55874247855 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55874247855 - 22 = 55874247851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55874247851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153729 + ... + 367941.

It is an arithmetic number, because the mean of its divisors is an integer number (5587772190).

Almost surely, 255874247855 is an apocalyptic number.

55874247855 is a deficient number, since it is larger than the sum of its proper divisors (33530107185).

55874247855 is a wasteful number, since it uses less digits than its factorization.

55874247855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231610.

The product of its digits is 62720000, while the sum is 60.

The spelling of 55874247855 in words is "fifty-five billion, eight hundred seventy-four million, two hundred forty-seven thousand, eight hundred fifty-five".

Divisors: 1 3 5 15 17389 52167 86945 214213 260835 642639 1071065 3213195 3724949857 11174849571 18624749285 55874247855