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55486620000 = 25355472233
BaseRepresentation
bin110011101011010000…
…101010000101100000
312022012221212100100000
4303223100222011200
51402114033320000
641253514500000
74003003326300
oct635320520540
9168187770300
1055486620000
1121593828949
12a906434600
13530367a536
1429852a3600
15169b3c0000
hexceb42a160

55486620000 has 1080 divisors, whose sum is σ = 238882139496. Its totient is φ = 12628224000.

The previous prime is 55486619989. The next prime is 55486620019. The reversal of 55486620000 is 2668455.

55486620000 is a `hidden beast` number, since 554 + 86 + 6 + 20 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1080).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 238139884 + ... + 238140116.

Almost surely, 255486620000 is an apocalyptic number.

55486620000 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 55486620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119441069748).

55486620000 is an abundant number, since it is smaller than the sum of its proper divisors (183395519496).

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

55486620000 is an equidigital number, since it uses as much as digits as its factorization.

55486620000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 55486620000 in words is "fifty-five billion, four hundred eighty-six million, six hundred twenty thousand".