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56722471200 = 25325223342527
BaseRepresentation
bin110100110100111011…
…000011100100100000
312102102002100002110200
4310310323003210200
51412131423034300
642020303225200
74045431023103
oct646473034440
9172362302420
1056722471200
11220683a117a
12abb02a8200
13546c715035
142a6148673a
15171eb3d200
hexd34ec3920

56722471200 has 216 divisors, whose sum is σ = 208714641408. Its totient is φ = 14468298240.

The previous prime is 56722471189. The next prime is 56722471217. The reversal of 56722471200 is 217422765.

It is a happy number.

56722471200 is a `hidden beast` number, since 567 + 2 + 2 + 4 + 71 + 20 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5664 + ... + 336863.

It is an arithmetic number, because the mean of its divisors is an integer number (966271488).

Almost surely, 256722471200 is an apocalyptic number.

56722471200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56722471200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104357320704).

56722471200 is an abundant number, since it is smaller than the sum of its proper divisors (151992170208).

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

56722471200 is a wasteful number, since it uses less digits than its factorization.

56722471200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342576 (or 342560 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

Adding to 56722471200 its reverse (217422765), we get a palindrome (56939893965).

The spelling of 56722471200 in words is "fifty-six billion, seven hundred twenty-two million, four hundred seventy-one thousand, two hundred".