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53479078511 = 67637907597
BaseRepresentation
bin110001110011100110…
…011111101001101111
312010001001022200010112
4301303212133221233
51334011121003021
640322402130235
73602155444535
oct616346375157
9163031280115
1053479078511
1120753600251
12a44605097b
135073792671
142834804155
1515d001cd5b
hexc7399fa6f

53479078511 has 4 divisors (see below), whose sum is σ = 53486992872. Its totient is φ = 53471164152.

The previous prime is 53479078459. The next prime is 53479078531. The reversal of 53479078511 is 11587097435.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53479078511 - 222 = 53474884207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53479078511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53479078531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947036 + ... + 3960561.

It is an arithmetic number, because the mean of its divisors is an integer number (13371748218).

Almost surely, 253479078511 is an apocalyptic number.

53479078511 is a deficient number, since it is larger than the sum of its proper divisors (7914361).

53479078511 is an equidigital number, since it uses as much as digits as its factorization.

53479078511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7914360.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 53479078511 in words is "fifty-three billion, four hundred seventy-nine million, seventy-eight thousand, five hundred eleven".

Divisors: 1 6763 7907597 53479078511