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55891725848 = 237998066533
BaseRepresentation
bin110100000011011010…
…000000111000011000
312100021012010212002022
4310003122000320120
51403431240211343
641402025354012
74016022555020
oct640332007030
9170235125068
1055891725848
1121781470972
12a9ba038908
135369588b3a
1429c2dd6a80
1516c1c41568
hexd03680e18

55891725848 has 16 divisors (see below), whose sum is σ = 119767984080. Its totient is φ = 23953596768.

The previous prime is 55891725709. The next prime is 55891725871. The reversal of 55891725848 is 84852719855.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499033211 + ... + 499033322.

It is an arithmetic number, because the mean of its divisors is an integer number (7485499005).

Almost surely, 255891725848 is an apocalyptic number.

It is an amenable number.

55891725848 is an abundant number, since it is smaller than the sum of its proper divisors (63876258232).

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

55891725848 is a wasteful number, since it uses less digits than its factorization.

55891725848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998066546 (or 998066542 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 62.

The spelling of 55891725848 in words is "fifty-five billion, eight hundred ninety-one million, seven hundred twenty-five thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 998066533 1996133066 3992266132 6986465731 7984532264 13972931462 27945862924 55891725848