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55563579450 = 233521710123971
BaseRepresentation
bin110011101111110110…
…001111000000111010
312022102022200021212000
4303233312033000322
51402243234020300
641305304201430
74004626430001
oct635766170072
9168368607760
1055563579450
11216232126a5
12a928169276
1353165b4982
1429915b7c38
1516a3022c00
hexcefd8f03a

55563579450 has 192 divisors, whose sum is σ = 163726842240. Its totient is φ = 13806720000.

The previous prime is 55563579443. The next prime is 55563579451. The reversal of 55563579450 is 5497536555.

55563579450 is a `hidden beast` number, since 5 + 5 + 5 + 63 + 579 + 4 + 5 + 0 = 666.

It is a super-2 number, since 2×555635794502 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (55563579451) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2305965 + ... + 2329935.

It is an arithmetic number, because the mean of its divisors is an integer number (852743970).

Almost surely, 255563579450 is an apocalyptic number.

55563579450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55563579450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81863421120).

55563579450 is an abundant number, since it is smaller than the sum of its proper divisors (108163262790).

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

55563579450 is a wasteful number, since it uses less digits than its factorization.

55563579450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24110 (or 24099 counting only the distinct ones).

The product of its (nonzero) digits is 14175000, while the sum is 54.

The spelling of 55563579450 in words is "fifty-five billion, five hundred sixty-three million, five hundred seventy-nine thousand, four hundred fifty".