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55054999993 = 715527506537
BaseRepresentation
bin110011010001100010…
…001010000110111001
312021002212200202222211
4303101202022012321
51400223034444433
641143015415121
73656212531030
oct632142120671
9167085622884
1055054999993
11213921263a4
12a8059844a1
135265117796
142943c2b717
1516735628cd
hexcd188a1b9

55054999993 has 8 divisors (see below), whose sum is σ = 62924176512. Its totient is φ = 47186867616.

The previous prime is 55054999981. The next prime is 55055000003. The reversal of 55054999993 is 39999945055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55054999993 - 233 = 46465065401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55054699993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144580 + ... + 361957.

It is an arithmetic number, because the mean of its divisors is an integer number (7865522064).

Almost surely, 255054999993 is an apocalyptic number.

It is an amenable number.

55054999993 is a deficient number, since it is larger than the sum of its proper divisors (7869176519).

55054999993 is a wasteful number, since it uses less digits than its factorization.

55054999993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522071.

The product of its (nonzero) digits is 88573500, while the sum is 67.

The spelling of 55054999993 in words is "fifty-five billion, fifty-four million, nine hundred ninety-nine thousand, nine hundred ninety-three".

Divisors: 1 7 15527 108689 506537 3545759 7864999999 55054999993