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54252004551 = 318084001517
BaseRepresentation
bin110010100001101010…
…111110010011000111
312012000220201101022220
4302201222332103013
51342102003121201
640531212423423
73630262300323
oct624152762307
9165026641286
1054252004551
112100a929aa8
12a620a77b73
135167956354
1428a9322983
151627ce8036
hexca1abe4c7

54252004551 has 4 divisors (see below), whose sum is σ = 72336006072. Its totient is φ = 36168003032.

The previous prime is 54252004523. The next prime is 54252004577. The reversal of 54252004551 is 15540025245.

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 54252004551 - 29 = 54252004039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54252004451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9042000756 + ... + 9042000761.

It is an arithmetic number, because the mean of its divisors is an integer number (18084001518).

Almost surely, 254252004551 is an apocalyptic number.

54252004551 is a deficient number, since it is larger than the sum of its proper divisors (18084001521).

54252004551 is a wasteful number, since it uses less digits than its factorization.

54252004551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18084001520.

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 54252004551 its reverse (15540025245), we get a palindrome (69792029796).

The spelling of 54252004551 in words is "fifty-four billion, two hundred fifty-two million, four thousand, five hundred fifty-one".

Divisors: 1 3 18084001517 54252004551