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54045455520 = 25357210122751
BaseRepresentation
bin110010010101010111…
…000011010010100000
312011111112001121022210
4302111113003102200
51341141114034040
640454513402120
73622203535500
oct622527032240
9164445047283
1054045455520
1120a14283721
12a583869340
135133c181a4
142889b17a00
151614ae8480
hexc955c34a0

54045455520 has 288 divisors, whose sum is σ = 200007553536. Its totient is φ = 12230400000.

The previous prime is 54045455509. The next prime is 54045455543. The reversal of 54045455520 is 2555454045.

It is a super-2 number, since 2×540454555202 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2364145 + ... + 2386895.

It is an arithmetic number, because the mean of its divisors is an integer number (694470672).

Almost surely, 254045455520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54045455520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100003776768).

54045455520 is an abundant number, since it is smaller than the sum of its proper divisors (145962098016).

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

54045455520 is a wasteful number, since it uses less digits than its factorization.

54045455520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22884 (or 22869 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 39.

The spelling of 54045455520 in words is "fifty-four billion, forty-five million, four hundred fifty-five thousand, five hundred twenty".