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55550154000 = 2435311978677
BaseRepresentation
bin110011101111000011…
…000001010100010000
312022101101102012121010
4303233003001110100
51402231314412000
641304104330520
74004404342515
oct635703012420
9168341365533
1055550154000
1121616682990
12a923773a40
135313893c13
14298d8c130c
1516a1c6ed50
hexcef0c1510

55550154000 has 320 divisors, whose sum is σ = 197411864832. Its totient is φ = 13326336000.

The previous prime is 55550153999. The next prime is 55550154007. The reversal of 55550154000 is 45105555.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (55550154007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6397662 + ... + 6406338.

Almost surely, 255550154000 is an apocalyptic number.

55550154000 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 55550154000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98705932416).

55550154000 is an abundant number, since it is smaller than the sum of its proper divisors (141861710832).

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

55550154000 is a wasteful number, since it uses less digits than its factorization.

55550154000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8811 (or 8795 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

Adding to 55550154000 its reverse (45105555), we get a palindrome (55595259555).

The spelling of 55550154000 in words is "fifty-five billion, five hundred fifty million, one hundred fifty-four thousand".