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52909663551 = 3487306111831
BaseRepresentation
bin110001010001101010…
…010110010100111111
312001120100212101122120
4301101222112110333
51331324333213201
640150101414023
73552102501603
oct612152262477
9161510771576
1052909663551
1120491142378
12a30740a313
134cb2815134
1427bcd3d503
15159a042536
hexc51a9653f

52909663551 has 16 divisors (see below), whose sum is σ = 70720147968. Its totient is φ = 35186205600.

The previous prime is 52909663549. The next prime is 52909663577. The reversal of 52909663551 is 15536690925.

It is not a de Polignac number, because 52909663551 - 21 = 52909663549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52909663494 and 52909663503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52909663591) 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 15 ways as a sum of consecutive naturals, for example, 4466206 + ... + 4478036.

It is an arithmetic number, because the mean of its divisors is an integer number (4420009248).

Almost surely, 252909663551 is an apocalyptic number.

52909663551 is a deficient number, since it is larger than the sum of its proper divisors (17810484417).

52909663551 is a wasteful number, since it uses less digits than its factorization.

52909663551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15382.

The product of its (nonzero) digits is 2187000, while the sum is 51.

The spelling of 52909663551 in words is "fifty-two billion, nine hundred nine million, six hundred sixty-three thousand, five hundred fifty-one".

Divisors: 1 3 487 1461 3061 9183 11831 35493 1490707 4472121 5761697 17285091 36214691 108644073 17636554517 52909663551