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BaseRepresentation
bin100101001011111101111…
…000100001111011111010
3100001022010002200222100000
4211023331320201323322
5313332100311403123
65233544451253430
7352424633562300
oct45137570417372
910038102628300
102555470028538
118a5850234779
123533258aa276
13156c977a082b
148b984a98270
1546718804b43
hex252fde21efa

2555470028538 has 144 divisors (see below), whose sum is σ = 6730372512864. Its totient is φ = 724559865120.

The previous prime is 2555470028497. The next prime is 2555470028569. The reversal of 2555470028538 is 8358200745552.

It is a happy number.

2555470028538 is a `hidden beast` number, since 2 + 5 + 554 + 7 + 0 + 0 + 2 + 85 + 3 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2710056 + ... + 3529212.

It is an arithmetic number, because the mean of its divisors is an integer number (46738698006).

Almost surely, 22555470028538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555470028538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3365186256432).

2555470028538 is an abundant number, since it is smaller than the sum of its proper divisors (4174902484326).

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

2555470028538 is a wasteful number, since it uses less digits than its factorization.

2555470028538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819319 (or 819300 counting only the distinct ones).

The product of its (nonzero) digits is 13440000, while the sum is 54.

The spelling of 2555470028538 in words is "two trillion, five hundred fifty-five billion, four hundred seventy million, twenty-eight thousand, five hundred thirty-eight".