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55961851250 = 25466912
BaseRepresentation
bin110100000111100101…
…100001010101110010
312100110002002121001102
4310013211201111302
51404102213220000
641413012404402
74020533613164
oct640745412562
9170402077042
1055961851250
1121808008148
12aa19616702
13537ac6c766
1429cc44c934
1516c7e943d5
hexd07961572

55961851250 has 30 divisors (see below), whose sum is σ = 104910573339. Its totient is φ = 22381395000.

The previous prime is 55961851249. The next prime is 55961851271. The reversal of 55961851250 is 5215816955.

It can be written as a sum of positive squares in 3 ways, for example, as 12938380009 + 43023471241 = 113747^2 + 207421^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=167275.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55961851195 and 55961851204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8360405 + ... + 8367095.

Almost surely, 255961851250 is an apocalyptic number.

55961851250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55961851250 is a deficient number, since it is larger than the sum of its proper divisors (48948722089).

55961851250 is an frugal number, since it uses more digits than its factorization.

55961851250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13404 (or 6698 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 47.

The spelling of 55961851250 in words is "fifty-five billion, nine hundred sixty-one million, eight hundred fifty-one thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 625 1250 6691 13382 33455 66910 167275 334550 836375 1672750 4181875 8363750 44769481 89538962 223847405 447694810 1119237025 2238474050 5596185125 11192370250 27980925625 55961851250