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53889253789 = 77698464827
BaseRepresentation
bin110010001100000011…
…001100000110011101
312011002122010201211111
4302030003030012131
51340331122110124
640431213422021
73615266046040
oct621403140635
9164078121744
1053889253789
1120944095a88
12a53b49a911
13510a757527
142873096c57
151606041494
hexc8c0cc19d

53889253789 has 4 divisors (see below), whose sum is σ = 61587718624. Its totient is φ = 46190788956.

The previous prime is 53889253739. The next prime is 53889253811. The reversal of 53889253789 is 98735298835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53889253789 - 27 = 53889253661 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 (53889253739) 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, 3849232407 + ... + 3849232420.

It is an arithmetic number, because the mean of its divisors is an integer number (15396929656).

Almost surely, 253889253789 is an apocalyptic number.

It is an amenable number.

53889253789 is a deficient number, since it is larger than the sum of its proper divisors (7698464835).

53889253789 is an equidigital number, since it uses as much as digits as its factorization.

53889253789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7698464834.

The product of its digits is 130636800, while the sum is 67.

The spelling of 53889253789 in words is "fifty-three billion, eight hundred eighty-nine million, two hundred fifty-three thousand, seven hundred eighty-nine".

Divisors: 1 7 7698464827 53889253789