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52540522551 = 32113714343577
BaseRepresentation
bin110000111011101010…
…001100000000110111
312000121122021002101200
4300323222030000313
51330100333210201
640045313423543
73540001034016
oct607352140067
9160548232350
1052540522551
1120311834270
12a22386abb3
134c541b97ca
142785ccca7d
151577927386
hexc3ba8c037

52540522551 has 24 divisors (see below), whose sum is σ = 85028730384. Its totient is φ = 30982124160.

The previous prime is 52540522537. The next prime is 52540522579. The reversal of 52540522551 is 15522504525.

52540522551 is a `hidden beast` number, since 5 + 2 + 54 + 0 + 52 + 2 + 551 = 666.

It is not a de Polignac number, because 52540522551 - 217 = 52540391479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52540522511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7168126 + ... + 7175451.

It is an arithmetic number, because the mean of its divisors is an integer number (3542863766).

Almost surely, 252540522551 is an apocalyptic number.

52540522551 is a deficient number, since it is larger than the sum of its proper divisors (32488207833).

52540522551 is a wasteful number, since it uses less digits than its factorization.

52540522551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14343631 (or 14343628 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 52540522551 in words is "fifty-two billion, five hundred forty million, five hundred twenty-two thousand, five hundred fifty-one".

Divisors: 1 3 9 11 33 37 99 111 333 407 1221 3663 14343577 43030731 129092193 157779347 473338041 530712349 1420014123 1592137047 4776411141 5837835839 17513507517 52540522551