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56610864475 = 5211297098541
BaseRepresentation
bin110100101110010001…
…010011110101011011
312102010022022212211021
4310232101103311123
51411414340130400
642001235143311
74042604260054
oct645621236533
9172108285737
1056610864475
11220103a2410
12ab7aa44b37
135452569559
142a5071372b
151714e4471a
hexd2e453d5b

56610864475 has 24 divisors (see below), whose sum is σ = 79219728720. Its totient is φ = 39751824000.

The previous prime is 56610864473. The next prime is 56610864487. The reversal of 56610864475 is 57446801665.

It is not a de Polignac number, because 56610864475 - 21 = 56610864473 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56610864473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3541296 + ... + 3557245.

It is an arithmetic number, because the mean of its divisors is an integer number (3300822030).

Almost surely, 256610864475 is an apocalyptic number.

56610864475 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56610864475 is a deficient number, since it is larger than the sum of its proper divisors (22608864245).

56610864475 is a wasteful number, since it uses less digits than its factorization.

56610864475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7098591 (or 7098586 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 56610864475 in words is "fifty-six billion, six hundred ten million, eight hundred sixty-four thousand, four hundred seventy-five".

Divisors: 1 5 11 25 29 55 145 275 319 725 1595 7975 7098541 35492705 78083951 177463525 205857689 390419755 1029288445 1952098775 2264434579 5146442225 11322172895 56610864475