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55739560015 = 537439686321
BaseRepresentation
bin110011111010010101…
…100011000001001111
312022212120211000210201
4303322111203001033
51403123311410030
641334552114331
74012164304606
oct637225430117
9168776730721
1055739560015
112170358a487
12a9770959a7
135343bac199
1429aab06a3d
1516b36d52ca
hexcfa56304f

55739560015 has 16 divisors (see below), whose sum is σ = 68851823040. Its totient is φ = 43287575040.

The previous prime is 55739560001. The next prime is 55739560039. The reversal of 55739560015 is 51006593755.

It is not a de Polignac number, because 55739560015 - 213 = 55739551823 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 261946 + ... + 424375.

It is an arithmetic number, because the mean of its divisors is an integer number (4303238940).

Almost surely, 255739560015 is an apocalyptic number.

55739560015 is a deficient number, since it is larger than the sum of its proper divisors (13112263025).

55739560015 is a wasteful number, since it uses less digits than its factorization.

55739560015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686802.

The product of its (nonzero) digits is 708750, while the sum is 46.

The spelling of 55739560015 in words is "fifty-five billion, seven hundred thirty-nine million, five hundred sixty thousand, fifteen".

Divisors: 1 5 37 185 439 2195 16243 81215 686321 3431605 25393877 126969385 301294919 1506474595 11147912003 55739560015