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55168711 = 134243747
BaseRepresentation
bin1101001001110…
…0111011000111
310211210212020121
43102130323013
5103110344321
65250242411
71236632503
oct322347307
9124725217
1055168711
1129161084
1216586407
13b577c10
147481303
154c9b441
hex349cec7

55168711 has 4 divisors (see below), whose sum is σ = 59412472. Its totient is φ = 50924952.

The previous prime is 55168709. The next prime is 55168727. The reversal of 55168711 is 11786155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11786155 = 52357231.

It is not a de Polignac number, because 55168711 - 21 = 55168709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55168811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121861 + ... + 2121886.

It is an arithmetic number, because the mean of its divisors is an integer number (14853118).

Almost surely, 255168711 is an apocalyptic number.

55168711 is a deficient number, since it is larger than the sum of its proper divisors (4243761).

55168711 is a wasteful number, since it uses less digits than its factorization.

55168711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243760.

The product of its digits is 8400, while the sum is 34.

The square root of 55168711 is about 7427.5642710111. The cubic root of 55168711 is about 380.6836975902.

The spelling of 55168711 in words is "fifty-five million, one hundred sixty-eight thousand, seven hundred eleven".

Divisors: 1 13 4243747 55168711