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55668288719 = 311919401839
BaseRepresentation
bin110011110110000101…
…101010110011001111
312022200121201001222002
4303312011222303033
51403002040214334
641323524342515
74010340434561
oct636605526317
9168617631862
1055668288719
112167733028a
12a957244a3b
1353321b6b14
1429a1473331
1516ac307b7e
hexcf616accf

55668288719 has 8 divisors (see below), whose sum is σ = 57764904960. Its totient is φ = 53590476600.

The previous prime is 55668288707. The next prime is 55668288749. The reversal of 55668288719 is 91788286655.

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

It is a cyclic number.

It is not a de Polignac number, because 55668288719 - 216 = 55668223183 is a prime.

It is a super-2 number, since 2×556682887192 (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 (55668288749) 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, 4694999 + ... + 4706840.

It is an arithmetic number, because the mean of its divisors is an integer number (7220613120).

Almost surely, 255668288719 is an apocalyptic number.

55668288719 is a deficient number, since it is larger than the sum of its proper divisors (2096616241).

55668288719 is a wasteful number, since it uses less digits than its factorization.

55668288719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9402061.

The product of its digits is 58060800, while the sum is 65.

The spelling of 55668288719 in words is "fifty-five billion, six hundred sixty-eight million, two hundred eighty-eight thousand, seven hundred nineteen".

Divisors: 1 31 191 5921 9401839 291457009 1795751249 55668288719