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54491019395 = 510898203879
BaseRepresentation
bin110010101111111010…
…101111100010000011
312012122120110121001112
4302233322233202003
51343044200110040
641011031353535
73636224010521
oct625772574203
9165576417045
1054491019395
112112283a42a
12a688b228ab
1351a5320957
1428ccd7d311
15163dcac365
hexcafeaf883

54491019395 has 4 divisors (see below), whose sum is σ = 65389223280. Its totient is φ = 43592815512.

The previous prime is 54491019367. The next prime is 54491019413. The reversal of 54491019395 is 59391019445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59391019445 = 511878203889.

It is a cyclic number.

It is not a de Polignac number, because 54491019395 - 226 = 54423910531 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5449101935 + ... + 5449101944.

It is an arithmetic number, because the mean of its divisors is an integer number (16347305820).

Almost surely, 254491019395 is an apocalyptic number.

54491019395 is a deficient number, since it is larger than the sum of its proper divisors (10898203885).

54491019395 is a wasteful number, since it uses less digits than its factorization.

54491019395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10898203884.

The product of its (nonzero) digits is 874800, while the sum is 50.

Adding to 54491019395 its sum of digits (50), we get a palindrome (54491019445).

The spelling of 54491019395 in words is "fifty-four billion, four hundred ninety-one million, nineteen thousand, three hundred ninety-five".

Divisors: 1 5 10898203879 54491019395