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53565860420 = 22517053157057
BaseRepresentation
bin110001111000110001…
…100010101001000100
312010021002121122112022
4301320301202221010
51334200330013140
640335142142312
73604261205162
oct617061425104
9163232548468
1053565860420
1120798593836
12a46b121998
1350887588c7
142842154232
1515d79610b5
hexc78c62a44

53565860420 has 24 divisors (see below), whose sum is σ = 112495619544. Its totient is φ = 21424951296.

The previous prime is 53565860417. The next prime is 53565860429. The reversal of 53565860420 is 2406856535.

It can be written as a sum of positive squares in 4 ways, for example, as 1429444864 + 52136415556 = 37808^2 + 228334^2 .

It is not an unprimeable number, because it can be changed into a prime (53565860429) 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, 262532 + ... + 419588.

It is an arithmetic number, because the mean of its divisors is an integer number (4687317481).

Almost surely, 253565860420 is an apocalyptic number.

It is an amenable number.

53565860420 is an abundant number, since it is smaller than the sum of its proper divisors (58929759124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53565860420 is a wasteful number, since it uses less digits than its factorization.

53565860420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174119 (or 174117 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 53565860420 in words is "fifty-three billion, five hundred sixty-five million, eight hundred sixty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 17053 34106 68212 85265 157057 170530 314114 341060 628228 785285 1570570 3141140 2678293021 5356586042 10713172084 13391465105 26782930210 53565860420