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55050560643 = 3131499941663
BaseRepresentation
bin110011010001010001…
…001110010010000011
312021002120100020100110
4303101101032102003
51400220420420033
641142340322403
73656130021231
oct632121162203
9167076306313
1055050560643
112138a674011
12a8043a3403
135264221c50
1429433d3951
151672e87363
hexcd144e483

55050560643 has 16 divisors (see below), whose sum is σ = 79099776000. Its totient is φ = 33854632224.

The previous prime is 55050560629. The next prime is 55050560657. The reversal of 55050560643 is 34606505055.

It is an interprime number because it is at equal distance from previous prime (55050560629) and next prime (55050560657).

It is not a de Polignac number, because 55050560643 - 25 = 55050560611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (55050560603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412371 + ... + 529292.

It is an arithmetic number, because the mean of its divisors is an integer number (4943736000).

Almost surely, 255050560643 is an apocalyptic number.

55050560643 is a deficient number, since it is larger than the sum of its proper divisors (24049215357).

55050560643 is a wasteful number, since it uses less digits than its factorization.

55050560643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943178.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 55050560643 in words is "fifty-five billion, fifty million, five hundred sixty thousand, six hundred forty-three".

Divisors: 1 3 13 39 1499 4497 19487 58461 941663 2824989 12241619 36724857 1411552837 4234658511 18350186881 55050560643