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54020012533 = 79683797627
BaseRepresentation
bin110010010011110101…
…111111100111110101
312011102202011222002221
4302103311333213311
51341113110400113
640452204202341
73621444346624
oct622365774765
9164382158087
1054020012533
1120a00985a63
12a5772393b1
13512b87a476
1428865b36bb
15161276e98d
hexc93d7f9f5

54020012533 has 4 divisors (see below), whose sum is σ = 54703810240. Its totient is φ = 53336214828.

The previous prime is 54020012471. The next prime is 54020012539. The reversal of 54020012533 is 33521002045.

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 54020012533 - 213 = 54020004341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54020012498 and 54020012507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54020012539) 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, 341898735 + ... + 341898892.

It is an arithmetic number, because the mean of its divisors is an integer number (13675952560).

Almost surely, 254020012533 is an apocalyptic number.

It is an amenable number.

54020012533 is a deficient number, since it is larger than the sum of its proper divisors (683797707).

54020012533 is an equidigital number, since it uses as much as digits as its factorization.

54020012533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683797706.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 54020012533 its reverse (33521002045), we get a palindrome (87541014578).

The spelling of 54020012533 in words is "fifty-four billion, twenty million, twelve thousand, five hundred thirty-three".

Divisors: 1 79 683797627 54020012533