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55155453052 = 2271969837609
BaseRepresentation
bin110011010111100001…
…010110110001111100
312021100212201022200111
4303113201112301330
51400424243444202
641201004435404
73661542421060
oct632741266174
9167325638614
1055155453052
11214338a7257
12a833548b64
13527cb8956b
1429532d9aa0
15167c2a66d7
hexcd7856c7c

55155453052 has 12 divisors (see below), whose sum is σ = 110310906160. Its totient is φ = 23638051296.

The previous prime is 55155453049. The next prime is 55155453061. The reversal of 55155453052 is 25035455155.

55155453052 is an admirable number.

It is a super-2 number, since 2×551554530522 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55155452996 and 55155453014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984918777 + ... + 984918832.

Almost surely, 255155453052 is an apocalyptic number.

It is an amenable number.

55155453052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55155453052 is a wasteful number, since it uses less digits than its factorization.

55155453052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969837620 (or 1969837618 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 40.

The spelling of 55155453052 in words is "fifty-five billion, one hundred fifty-five million, four hundred fifty-three thousand, fifty-two".

Divisors: 1 2 4 7 14 28 1969837609 3939675218 7879350436 13788863263 27577726526 55155453052