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52540214521 = 891673534967
BaseRepresentation
bin110000111011101001…
…000000110011111001
312000121121200102212011
4300323221000303321
51330100243331041
640045303045521
73536665311664
oct607351006371
9160547612764
1052540214521
11203116438a3
12a2237408a1
134c5410c542
142785c4c6db
1515778b5e81
hexc3ba40cf9

52540214521 has 8 divisors (see below), whose sum is σ = 53448716160. Its totient is φ = 51638783328.

The previous prime is 52540214509. The next prime is 52540214567. The reversal of 52540214521 is 12541204525.

52540214521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52540214521 - 29 = 52540214009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52540214581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1752621 + ... + 1782346.

It is an arithmetic number, because the mean of its divisors is an integer number (6681089520).

Almost surely, 252540214521 is an apocalyptic number.

It is an amenable number.

52540214521 is a deficient number, since it is larger than the sum of its proper divisors (908501639).

52540214521 is a wasteful number, since it uses less digits than its factorization.

52540214521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535223.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 52540214521 in words is "fifty-two billion, five hundred forty million, two hundred fourteen thousand, five hundred twenty-one".

Divisors: 1 89 167 14863 3534967 314612063 590339489 52540214521