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52555555525 = 5211257769967
BaseRepresentation
bin110000111100100011…
…100010001011000101
312000122200112211202111
4300330203202023011
51330113210234100
640051011541021
73540242564644
oct607443421305
9160580484674
1052555555525
112031a271810
12a2288ba771
134c57351165
142787cc335b
151578de66ba
hexc3c8e22c5

52555555525 has 48 divisors (see below), whose sum is σ = 71536671360. Its totient is φ = 37984665600.

The previous prime is 52555555513. The next prime is 52555555529.

52555555525 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 52555555525 - 215 = 52555522757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52555555529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54348592 + ... + 54349558.

It is an arithmetic number, because the mean of its divisors is an integer number (1490347320).

Almost surely, 252555555525 is an apocalyptic number.

52555555525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52555555525 is a deficient number, since it is larger than the sum of its proper divisors (18981115835).

52555555525 is a wasteful number, since it uses less digits than its factorization.

52555555525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014 (or 2009 counting only the distinct ones).

The product of its digits is 7812500, while the sum is 49.

The spelling of 52555555525 in words is "fifty-two billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred twenty-five".

Divisors: 1 5 11 25 55 257 275 769 967 1285 2827 3845 4835 6425 8459 10637 14135 19225 24175 42295 53185 70675 197633 211475 248519 265925 743623 988165 1242595 2173963 2733709 3718115 4940825 6212975 8179853 10869815 13668545 18590575 40899265 54349075 68342725 191111111 204496325 955555555 2102222221 4777777775 10511111105 52555555525